List of CSI: Crime Scene Investigation characters

Not to be confused with List of CSI: Miami characters or List of CSI: NY characters.

CSI: Crime Scene Investigation is an American crime drama television series created by Anthony E. Zuiker and executive produced by Jerry Bruckheimer, Carol Mendelsohn, Ann Donahue, William Petersen, Cynthia Chvatal, Naren Shankar, and Don McGill, among others. It follows Las Vegas criminalists (identified as "Crime Scene Investigators") working for the Las Vegas Police Department as they use physical evidence to solve murders. Gil Grissom, a forensic entomologist, D.B. Russell, an esteemed botanist, and Julie Finlay and Catherine Willows, blood spatter experts with extensive knowledge of criminal psychology, head a team who are on the case 24/7, scouring the scene, collecting the evidence, and finding the missing pieces that will solve the mystery. Grissom and Willows were based upon real LVMPD Crime Scene Analysts David Holstein and Yolanda McClary.

Main cast

CSI originally starred William Petersen and Marg Helgenberger alongside an ensemble including George Eads, Gary Dourdan, and Paul Guilfoyle. Jorja Fox joined the cast in episode two of the first season, whilst Eric Szmanda and Robert David Hall recurred throughout the first two seasons of the show before being promoted to regular status starting with the third. Louise Lombard, who first appeared in season five, joined the cast starting with season seven. The first major cast overhaul came with the show's eighth and ninth seasons. Lombard departed the cast in the first episode of season eight, whilst Fox departed in episode seven of the same season. Wallace Langham joined the main cast following Lombard's departure, having recurred since the third season. Fox would return for guest appearances during the ninth season in order to facilitate the departures of both Gary Dourdan and William Petersen, who were replaced by Lauren Lee Smith and Laurence Fishburne, respectively. Smith departed the cast at the end of her first year, and was replaced by a returning Jorja Fox, who featured in a recurring capacity. Liz Vassey and David Berman, who had recurred from season six, and season one, respectively, also joined the cast starting with season ten. Like Smith, Vassey departed the cast after a single season, and was replaced by Fox, who rejoined the main cast. William Petersen would appear in voice clips sporadically over the next three seasons. Fishburne departed the main cast at the end of season eleven, a season that featured guest appearances by Elisabeth Harnois and Louise Lombard, and was replaced by Ted Danson. Danson made his main cast debut alongside Elisabeth Harnois at the start of the twelfth season. Series lead Marg Helgenberger departed the main cast in the twelfth episode of season twelve and was replaced by Elisabeth Shue. Season thirteen saw Jon Wellner join the main cast after eight years a guest star. Helgenberger returned for a single episode in season fourteen, while Paul Guilfoyle departed at the end of the same year, followed by Elisabeth Shue and George Eads at the end of the fifteenth season. The show's finale, a two-hour film, featured the return of Helgenberger, Petersen, and Guilfoyle. The series finale marked their final appearances, as well as the final appearances of Fox, Szmanda, Hall, Langham, Berman, Harnois, and Wellner. Ted Danson went on to reprise his role of Russell during season two of Cyber.

Character	Actor	First episode (credited)	Final episode (credited)	Seasons
				1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	Finale
Gil Grissom	William Petersen	"Pilot" (S1E01)	"Immortality" (guest) "One to Go" (S9E10; main credits)	Main									Does not appear		Does not appear	Voice	Does not appear		Guest
Catherine Willows	Marg Helgenberger		"Immortality" (guest) "Willows in the Wind" (S12E12; main credits)	Main												Does not appear		Does not appear	Guest
Warrick Brown	Gary Dourdan		"For Warrick" (S9E01)	Main									Does not appear
Nick Stokes	George Eads		"The End Game" (S15E18)	Main															Does not appear
Jim Brass	Paul Guilfoyle		"Immortality" (guest) "Dead in his Tracks" (S14E22; main credits)	Main														Does not appear	Guest
Greg Sanders	Eric Szmanda		"Immortality"			Main
Sara Sidle	Jorja Fox	"Cool Change" (S1E02)		Main								Recurring		Main
Al Robbins	Robert David Hall	"Who Are You?" (S1E06)				Main
Sofia Curtis	Louise Lombard	"Formalities" (S5E07)	"Father of the Bride" (S11E20)							Main
David Hodges	Wallace Langham	"Recipe for Murder" (S3E11)	"Immortality"			Recurring					Main
Riley Adams	Lauren Lee Smith	"Art Imitates Life" (S9E03)	"All In" (S9E24)									Main
Raymond Langston	Laurence Fishburne	"19 Down" (S9E09; guest) "The Grave Shift" (S9E11; main credits)	"In a Dark, Dark House" (S11E22)									Main
Wendy Simms	Liz Vassey	"Secrets and Flies" (S6E06)	"Pool Shark" (S11E02)						Recurring				Main
David Phillips	David Berman	"Friends and Lovers" (S1E05)	"Immortality"	Recurring									Main
D.B. Russell	Ted Danson	"73 Seconds" (S12E01)													Main
Morgan Brody	Elisabeth Harnois	"Cello and Goodbye" (S11E21)													Main
Julie Finlay	Elisabeth Shue	"Seeing Red" (S12E14)	"The End Game" (S15E18)												Main
Henry Andrews	Jon Wellner	"Iced" (S5E23)	"Immortality"					Recurring								Main

Sara Sidle fictional biography

Sara Sidle is a fictional character portrayed by actress Jorja Fox on the CBS crime drama CSI: Crime Scene Investigation and its sequel, CSI: Vegas. Sidle is a forensic scientist and one of the core characters of the show, which revolves around a Crime Scene Investigation team in Clark County, Nevada, that investigates cases in and around Las Vegas. Sidle appeared in both the first eight seasons and the final five seasons of the original show as a series regular. She also recurred throughout the ninth and tenth seasons of the series and headlined Immortality alongside Ted Danson. She returned in the sequel CSI: Vegas.

Sidle was born on September 16, 1971, in Tomales, an hour and a half north of San Francisco. Her father was an abusive alcoholic and was killed by Sidle's schizophrenic mother in 1984. Afterward, she spent time in the foster care system, which didn't keep her from graduating from high school as valedictorian at age 16. She attended Harvard on a scholarship, moving on to graduate school at the University of California, Berkeley. While at Berkeley, she started a work-study position at the San Francisco Coroner's Office, where she would also audit lectures to keep up with new developments; it was at one of these that she met Gil Grissom.

Some time later, while she was working in San Francisco, Grissom called her because he needed someone outside the Las Vegas team. Sidle went to Las Vegas and helped resolve some Internal Affairs problems within the CSIs while also providing a replacement for Holly Gribbs, who had been shot. Some episodes later, she became a permanent member of the night shift as a CSI Level 3 at the LVPD Criminalistics Bureau, specialising in materials and element analysis. In Season 8, Sidle briefly changed from nights to swing shifts. In the Season 10 premiere, it is revealed she is married to Grissom. In Season 13, Episode 15, she reveals that Grissom had split up with her. However in series finale "Immortality", she and Grissom are reunited.

Appearances

In each of the original series' first seven seasons, Sidle appeared in all but six episodes, and then appeared in the first seven episodes of the eighth season before departing the main cast. Sidle had guest appearances in nineteen episodes, then rejoined as a regular character in the series' eleventh season. Sidle returned for the first season of the sequel CSI: Vegas.

Character development

Perhaps because of her traumatic childhood, Sidle has demonstrated compassion and empathy for victims of domestic violence, and fury against their abusers. She also has a soft spot for animals, and became a vegetarian after she saw Grissom conduct an experiment on a dead pig. She has also shown a tendency to become very aggressive when under pressure or annoyed, especially in cases involving abused women – such as her arguments with Catherine and Ecklie, and engaging in a heated argument with a man suspected of murdering his wife. In recent years, perhaps because of her mother's schizophrenia, she has been seen to work several cases with a mental health aspect.

In the early years of the show, Sidle is depicted as antisocial. Her hobbies are all work-related (listening to her police scanner and reading forensic journals); and she claims to prefer working with corpses over live people. In a mid-second season episode, she realizes how much she is missing out on and decides to "get a life" outside of work. During season three she dates a paramedic named Hank Pettigrew, but this relationship ends later in the season when she discovered that he had a longtime girlfriend. Later in the third season, she is injured in an explosion in the lab in search of Grissom, at the end of the episode she decides to ask Grissom to dinner though he turns her down, stating he doesn't know what to do about "this.".

Sara Sidle breaks down on the fifth season episode "Nesting Dolls".

During the fourth and fifth seasons, Sidle seems to be on a downward spiral as her memories of childhood resurface, with cases becoming more difficult for her emotionally. Also, the fact that Grissom decided to promote Nick Stokes instead of Sidle, did not help. Season Four concludes with Sidle being stopped by a traffic cop. Although she is driving under the influence, she is not charged, but Grissom, as her supervisor, is informed of her arrest. He arrives at the station to bring her home, and finally seems to notice her emotional state. Later, in season five, she loses her temper with a domestic abuse suspect and then argues with supervisors Catherine Willows and Conrad Ecklie, which results in her suspension. Following this incident, she admits to Grissom that she has a problem with authority, has chosen emotionally unavailable men (like Grissom), and has a self-destructive streak. Sidle then opens up to him and reveals her family story; it is during this season that she apparently starts bonding with Grissom. During the subsequent seasons (sixth and seventh), after it is revealed that they are in a relationship, she appears to be happier and on a more even keel.

In CSI's eighth season, Sidle becomes severely depressed after being abducted in the season seven finale (she is rescued in the first episode of the new season), and, even though she accepts Grissom's marriage proposal on the season's fourth episode, she shows signs of burnout during the subsequent episodes, breaking down on the season's seventh episode, leaving Las Vegas with only a goodbye letter for Grissom in which she tells him she loves him - also kissing him out of the blue in front of another colleague - and a good luck note for Ronnie Lake (played by Jessica Lucas). In the letter she states that ever since her father's death she has been living with "ghosts" and that she now needs to go away and deal with them before self-destructing.

Promos for the season nine premiere showed Sidle in three clips. She appeared in episodes one and two, and then again in the final scene of the tenth episode of season nine when she appears to be working on a research team in Costa Rica, where Grissom joins her after leaving CSI. Then they are married.

During the tenth season, Sidle returned to CSI on a recurring basis. This recurring role continued until the eleventh season of the show. She is brought back by Under-Sheriff Ecklie to aid the lab, which has undergone staffing cuts as a result of Warrick's death and the resignation of his replacement, Riley Adams. Adams was revealed to have resigned as a result of Catherine's poor management and lack of teamwork; when Catherine reveals this to Sara, she reminds Catherine that Grissom had Catherine as a number two, prompting the promotion of Nick Stokes to Assistant Supervisor.

Relationships

Sara Sidle's romantic relationships have been largely unsuccessful. In the first season she named a college boyfriend, Ken Fuller, with whom she had an unsatisfactory relationship, also saying that they had joined the Mile high club (Unfriendly Skies). In season seven she mentioned a college boyfriend who cheated on her. It is unclear whether Fuller was also the boyfriend who cheated on her. In the third season she had a casual relationship with Hank Pettigrew, who was an emergency medical technician. He was involved in several of her cases, but they later broke up after she found out Hank had a longtime girlfriend.

During the first seasons, coroner David Phillips, laboratory technician Greg Sanders, and fellow CSI Nick Stokes occasionally flirted with her, but nothing more than friendship resulted from those flirtations.

Since CSI's first season there were hints that both Sara Sidle and Gil Grissom were interested in each other romantically; in fact, the show's producers initially introduced Sara Sidle as a future love interest for Grissom. However, during the show's first three seasons Grissom flirted with other female characters, and when she asked him out to dinner he rejected her, saying that he didn't know what to do about what was going on between them.

Gil Grissom and Sara Sidle on the fourth season episode "Invisible Evidence"

In season four and five there explorations of Grissom's feelings in "Butterflied," Sidle's drinking problems, and a refusal by Grissom to fire Sidle for insubordination. By the end of season six, it is reveled that Grissom and Sidle have worked together through their issues, and were a couple.

In season eight it was revealed they have been intimately involved for two years. This revelation caused mixed emotions from fans, some of whom see this relationship as CSI "jumping the shark," an attempt to include more drama and romance to the show to compete with the medical drama Grey's Anatomy, which airs in the U.S. at the same time. By resolving the sexual tension between the two characters, critics posited that the show might appeal to some of Grey's younger audience. This has been denied by the writers. In one interview, producer Carol Mendelsohn said that she has never been able to see Grissom with any other character other than Sidle and that this episode was seen by the writers as the right time to reveal the relationship. Jorja Fox and William Petersen have also said that the relationship between their characters is not new. In season 10-13, Sidle and Grissom's relationship starts to dissolve, separate, and re-unite by the series finale.

William Petersen has said that what Grissom loves about Sidle is her tenacity. "She's a bulldog. And he always saw that in her. And he always knew that subconsciously the only person who'd be able to give him a second look is someone who's not willing to take the first look for granted." On her side, Jorja Fox has said that "The story of Sara and Grissom is a little like a fable. And most great fables don't really have 100 percent resolution."

Reception

Sara Sidle has gained an extensive fan base throughout the years. A romantic relationship between Sidle and her supervisor, Gil Grissom, was hinted at during the first years of the show; but it was only in Season 6 that the relationship was confirmed and then made definitive with Grissom's marriage proposal in Season 8.

Grissom and Sidle's relationship has been the subject of intense debate in the press and on-line forums, between fans of the romantic relationship and those who believe the romance detracts from what was once a show devoted mainly to mysteries and a forensics laboratory.

In early August 2007, upon rumors of Jorja Fox leaving the show, a grassroots campaign started. Thousands of fans donated to the cause, and they had a plane flying over the Universal Studios of Los Angeles weekly on Tuesdays and Thursdays with a "Keep Jorja Fox on CBS" banner for a month. The online forum Your Tax Dollars at Work, which has about 15,000 members and has organized the campaign, created another campaign that includes mailing the show's producers a dollar, so as to keep Fox on the show. By October 5, 2007, more than $3,500 had reportedly been mailed to the Universal Studios from forty-nine countries. The campaign had started less than a week before, on September 29, 2007.

Though the effort garnered media coverage, it was announced in late October, 2007 that Jorja Fox's final appearance as a full cast member would be in the episode Goodbye and Good Luck, which aired on November 15, 2007. Both writers and Fox have said that they believe that Sara Sidle "will be back" sometime in the future. Fox and CSI writer Carol Mendelsohn chose to donate the money sent to the studios to CASA, a national association that supports and promotes court-appointed advocates for abused or neglected children.

CBS initially confirmed that Jorja Fox would be returning to CSI in the tenth season for the season premiere and four subsequent episodes. Executive producer Carol Mendelsohn has amended that Fox's tenure on the show has been extended indefinitely. CBS states that the season premiere would deal with where life has taken Sara and what brings her back to Las Vegas.

Video games

Jorja Fox voiced Sara Sidle in the first two CSI video games, CSI: Crime Scene Investigation and CSI: Dark Motives. The other two video games, CSI: Hard Evidence and CSI: 3 Dimensions of Murder, were recorded by Kate Savage. Rachel Robinson voiced Sara in the ninth CSI game, CSI: Fatal Conspiracy.

Crossover characters

Several main characters from other series have appeared over the course of CSI's sixteen-season run.

• CSI: Miami stars David Caruso (Horatio Caine), Emily Procter (Calleigh Duquesne), Adam Rodriguez (Eric Delko), Rory Cochrane (Tim Speedle), and Khandi Alexander (Alexx Woods) appear in season 2, episode 23: "Cross Jurisdictions".
• CSI: NY star Gary Sinise (Mac Taylor) appears in season 13, episode 13: "In Vino Veritas".
• CSI: Cyber star Patricia Arquette (Avery Ryan) appears in both season 14, episode 21: "Kitty", and season 15, episode 6: "The Twin Paradox".
• CSI: Cyber star Ted Danson (D.B. Russell) first appeared in the lead role on CSI, starring from season 12, episode 1: "73 Seconds" through "Immortality".
• Without a Trace star Anthony LaPaglia (Jack Malone) appeared in season 8, episode 6: "Who and What...?"
• Level 26 character Black Sqweegel appears in season 11, episode 4: "Sqweegel". He is played by Daniel Browning Smith.

Police officers

Due to the content of the series, a number of police officers are required to support the principal cast. Detectives, such as Frankie Reed and Sam Vega, are often seen arresting and interviewing suspects alongside the criminalists. Sheriffs and Undersheriffs act as an administrative and supervisory arm of the LVPD and often appear adversarial to the CSIs. Officers are most often seen entering and searching properties, although sometimes they are also seen involved in car chases or other forms of high speed pursuit.

Character	Actor	First Episode (credited)	Final Episode (credited)	Seasons
				1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	Finale
Sheriffs and Undersheriffs
Conrad Ecklie	Marc Vann	1.07 "Blood Drops"	"Immortality"
Brian Mobley	Glenn Morshower		2.03 "Overload"
Rory Atwater	Xander Berkeley	4.07 "Invisible Evidence"	5.07 "Formalities"
Jeffrey McKeen	Conor O'Farrell	6.06 "Secrets & Files"	13.01 "Karma to Burn"
Sherry Liston	Barbara Eve Harris	12.04 "Maid Man"	12.22 "Homecoming"
Sergeants
Ray O'Riley	Skip O'Brien	1.01 "Pilot"	4.03 "Homebodies"
Barclay	Lex Medlin	10.18 "Field Mice"	10.23 "Meat Jekyll"
Detectives
Sam Vega	Geoffrey Rivas	1.16 "Too Tough to Die"	12.20 "Altered Stakes"
Cyrus Lockwood	Jeffrey D. Sams	02.16 "Primum Non Nocere"	03.22 "Inside the Box"
Lou Vartann	Alex Carter	4.09 "Grissom v. The Volcano"	13.11 "Dead Air"
Chris Caviliere	José Zúñiga	4.16 "Getting Off"	10.11 "Sin City Blue"
Carlos Moreno	Enrique Murciano	10.04 "Coup de Grace"	13.03 "Wildflowers"
Frankie Reed	Katee Sackhoff	11.06 "Cold Blooded"	11.14 "All That Cremains"
Kevin Crawford	Alimi Ballard	13.09 "Strip Maul"	15.16 "The Last Ride"
Daniel Shaw	Mark Valley	15.01 "The CSI Effect"	15.18 "The End Game"
Police Officers
Joe Metcalf	Joseph Patrick Kelly	1.20 "Sounds of Silence"	15.15 "Hero to Zero"
David Fromansky	David Andrews	4.02 "All For Our Country"	4.14 "Paper or Plastic"
Andy Akers	Larry Sullivan	4.07 "Invisible Evidence"	15.12 "Dead Woods"
Larry Mitchell	Larry Mitchell	6.02 "Room Service"	16.02 "Immortality Part II"
Daniel Pritchard	David Gianopoulos	8.17 "For Gedda"	09.01 "For Warrick"
Officer Shelly	Shelli Bergh	11.20 "Father of the Bride"	12.05 "CSI Down"
Lewis Norman	Lewis T. Powell	12.06 "Freaks & Geeks"	14.20 "Consumed"
Paul Kimball	Peter Onorati	12.22 "Homecoming"	13.01 "Karma to Burn"

Relatives and friends

CSI focuses on the characters personal lives as well as their professional, therefore friends and relatives are seen often. Characters such as D.B. Russell, who have a stable home life, require large supporting families, while social introvert Gil Grissom's sole recurring social partner is Lady Heather, a dominatrix. This list is not definitive, and characters who have appeared only once are not listed.

Character (actor)	First episode (credited)	Final episode (credited)	Seasons
			1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	Finale
Lindsey Willows (Katie Stevens, Kay Panabaker & Madison McReynolds)	01.01 "Pilot"	16.02 "Immortality Part II"
Kristy Hopkins (Krista Allen)		01.13 "Boom"
Eddie Willows (Timothy Carhart)	01.06 "Who Are You?"	03.15 "Lady Heather's Box"
Sam Braun (Scott Wilson & Dwier Brown)	02.01 "Burked"	11.02 "Pool Shark"
Hank Peddigrew (Christopher Wiehl)	02.04 "Bully for You"	03.17 "Crash and Burn"
Heather Kessler (Melinda Clarke)	02.08 "Slaves of Las Vegas"	16.02 "Immortality Part II"
Ellie Rebecca Brass (Nicki Aycox & Teal Redmann)	02.10 "Ellie"	14.22 "Dead In His Tracks"
Lily Flynn (Anita Gillette)	05.22 "Weeping Willows"	12.11 "Ms. Willows' Regrets"
Bill Stokes (Andrew Prine)	05.24 "Grave Danger Vol. I"	05.25 "Grave Danger Vol. II"
Jillian Stokes (Lois Chiles)
Tina Brewster (Meta Golding)	06.04 "Shooting Stars"	13.07 "Fallen Angels"
Eli Brown (Terrell Ransom, Jr)	09.01 "For Warrick"
Gloria Parkes (Tracee Ellis Ross)	11.14 "All That Cremains"	11.22 "In a Dark, Dark House"
Charlie Russell (Brandon Jones)	12.07 "Brain Doe"	13.06 "Pick and Roll"
Olivia Hodges (Jaclyn Smith)	12.18 "Malice in Wonderland"	12.22 "Homecoming"
Barbara Russell (Peri Gilpin)	12.22 "Homecoming"	14.06 "Passed Pawns"
Kaitlyn Russell (Mia Hays)		13.01 "Karma to Burn"
Maya Russell (Brooke Nevin)		15.13 "The Greater Good"
Elisabetta Hodges (Catrinel Marlon)	13.12 "Double Fault"	14.04 "Last Supper"
Nancy Brass (Annabella Sciorra)	13.22 "Skin in the Game"	14.01 "The Devil and D.B. Russell"

Criminalists

In addition to the CSIs and technicians of the main cast, several recurring actors appear in these roles. Characters such as Michael Keppler and Ronnie Lake appear for only a short period of time, for specific storylines, while other characters like Mandy Webster and Archie Johnson appear consistently in order to provide a specialty that is absent from the lead characters' résumés. As the series progresses, the number of supporting characters drops dramatically.

Adversaries

Throughout the series, the CSIs have been forced to confront several recurring adversaries. These characters are usually serial killers, and their motives and M.O. vary greatly.

Character (actor)	First episode (credited)	Final episode (credited)	Seasons																Alias
			1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	Finale
Paul Millander (Matt O'Toole)	01.01 "Pilot"	02.13 "Identity Crisis"																	The Bathtub Killer
Jerrod Cooper (Garland Whitt)		01.02 "Cool Change"																	—
Judge Cohen (Harrison Young)		01.04 "Pledging Mr. Johnson"																	N/A
Tony Thorpe (Aldis Hodge)	01.16 "Too Tough to Die"	09.02 "The Happy Place"																	The Parking Garage Rapist
Tammy Felton (Brigid Brannagh)	01.17 "Face Lift"	02.09 "And Then There Were None"																	Bonnie
Darin Hanson (Larry Holden)																			Clyde
Kevin Greer (Taylor Nichols)	03.06 "The Execution of Catherine Willows"	05.06 "What's Eating Gilbert Grissom?"																	The Blue Paint Killer
John Mathers (Victor Bevine)
Cameron Klinefeld (Rudolf Martin)	04.01 "Assume Nothing"	04.02 "All For Our Country"																	The Klinefelds
Mandy Klinefeld (Sandra Hess)
Stuart Gardner (Scott Alan Smith)																			N/A
Walter Gordon (John Saxon)	05.24 "Grave Danger, Part 1"	05.25 "Grave Danger, Part 2"																	N/A
Marlon West (Doug Smith)	06.18 "The Unusual Suspect"	08.07 "Goodbye & Good Luck"																	The West Siblings
Hannah West (Juliette Goglia)
William Cutler (Currie Graham)	06.23 "Bang-Bang"	06.24 "Way To Go"																	N/A
Joe Hirschoff (Kevin Rahm)	07.01 "Built to Kill, Part 1"	07.02 "Built to Kill, Part 2"																	N/A
Natalie Davis (Jessie Collins)	07.24 "Living Doll"	09.07 "Woulda, Shoulda, Coulda"																	The Miniature Killer
Terry Lee Wicker (John Hawkes)	08.06 "Who & What"	Without a Trace 06.06 "Where & Why"																	N/A
Lou Gedda (John Capodice)	08.09 "Cockroaches"	08.17 "For Gedda"																	—
Thomas Donover (Jimmi Simpson)	09.09 "19 Down"	09.10 "One To Go"																	The Dick & Jane Killer Copycat
Nate Haskell (Bill Irwin)	09.09 "19 Down"	11.22 "In a Dark, Dark House"																	The Dick & Jane Killer
Charles DiMasa (Matt Ross)	10.17 "Irradiator"	10.23 "Meat Jekyll"																	Doctor Jekyll
Jason McCann (Justin Bieber)	11.01 "Shock Waves"	11.15 "Targets of Obsession"																	—
Laura Gabriel (Annabeth Gish)	12.09 "Zippered"	12.12 "Willows in the Wind"																	N/A
Ronald Basderic (Adam Harrington)	13.02 "Code Blue Plate Special"	13.15 "Forget Me Not"																	N/A
Matthew Tarland (Lucas Kerr)	13.22 "Skin in the Game"	14.01 "The Devil and D.B. Russell"																	The Inferno Killer
Daniel Larson (Eric Roberts)		15.18 "The End Game"																	—
Jared Briscoe (Mark-Paul Gosselaar)	15.01 "The CSI Effect"	15.13 "The Greater Good"																	The Gig Harbor Killer
Paul Winthrop (Mark-Paul Gosselaar)		15.18 "The End Game"
Dalton Betton (Doug Hutchison)	15.19 "Immortality, Part 1"	15.20 "Immortality, Part 2"																	N/A