The Whole Cast
A bunch of attractive scientists/cops. This is a CSI spin-off after all.
- Portrayed by: Gary Sinise
- Adorkable: Upon first glance you wouldn't know it, but see him around any of his love interests and you'll know that it's true. (Or ask Polly, the roller derby chick, from Episode 2.10, "Jamalot.")
- Atonement Detective
- Berserk Button: Do not hurt Christine.
- Clear My Name: "Past Imperfect"
- Cowboy Cop: Several times in season 3.
- Crusading Widower
- Embarrassing Middle Name: Mac Llewellyn Taylor
- Heartbroken Badass: Lost his wife, Claire, in the 9/11 attacks. Suffered with insomnia for years afterward.
- A Father to His Men
- It Is Not Your Time: "Near Death"
- Knight In Sour Armor
- The Lost Lenore: His late wife Claire.
- Married to the Job: He doesn't even like to go home to sleep. Christine is helping him get his head out of work now.
- Mysterious Past
- Near-Death Experience: see It Is Not Your Time above.
- Official Couple: First with Peyton, then with Christine.
- Platonic Life-Partners: With Stella. Seems to be it with Jo since Stella left.
- Scars Are Forever: Mac still has scars from being burned by a hot piece of shrapnel during the 1983 terrorist bombings in Beirut, from being blown up in 'Charge of this Post,' and from his bullet wound in 'Near Death.'
- Semper Fi
- The Stoic
- Team Dad
- 10-Minute Retirement
- Portrayed by: Melina Kanakaredes
- Absolute Cleavage: Many of Stella's outfits highlight her cleavage, but in Episode 4.03, "You Only Die Once," Stella wears a scintillating black dress that drops all the way to the top of her stomach.
- Action Girl
- Actor-Shared Background: She's Greek.
- Alone with the Psycho: Her boyfriend Frankie in episode 2.21, "All Access."
- Fair Cop
- Fatal Attractor
- Foster Kid
- Ms. Fanservice
- Platonic Life-Partners: With Mac.
- Put on a Bus: At the beginning of season seven.
- Quirky Curls
- Team Mom
- Portrayed by: Carmine Giovinazzo
- Brooklyn Rage: Sometimes.
- Career-Ending Injury: It ended his dreams of a baseball career, and led him to become a detective.
- Clear My Name: 3 times. "Internal Affairs," "Officer Involved" and "Run Silent, Run Deep."
- Fair Cop
- Hair-Trigger Temper: It's gotten him into trouble a time or two.
- Happily Married: To Lindsay.
- Mistaken for Cheating
- Mr. Fanservice
- Mysterious Past: Finally revealed in "Run Silent, Run Dee."
- Official Couple: See above.
- Rank Up: Briefly, in the beginning of season 8. But he gave up his sergeant's stripes and went back to the lab.
- The Glasses Come Off: In later seasons.
- Turn in Your Badge: Once in season 3, averted in season 8.
Lindsay "Montana" Messer (formerly Monroe)
- Portrayed by: Anna Belknap
- Action Mom
- Beware the Nice Ones
- Big Eater: In "Food for Thought":Lindsay: *gives Danny a Long List of food to pick up*Danny: *scoffs, starts to walk off, turns and gives her a look*Lindsay: I'm not pregnant, I'm just hungry.
- Brainy Brunette
- Dark and Troubled Past
- Expository Hairstyle Change: Sports mid length hair in season 2-3, either straight or wavy before having chin length hair from season 4-6, then to shoulder length hair from season 7-9.
- Happily Married: See below.
- Harmful to Minors: As a teenager, Lindsay witnessed the murder of several friends. In season three, she is called to testify at the trial of their murderer. In season nine, she returns to Montana again for his execution.
- Hide Your Pregnancy: Anna Belknap's first pregnancy, the second gave us Lucy.
- Hot Scientist
- Mama Bear: Not a good idea to mess with Danny and Lucy.
- Mysterious Past: Her big secret was hinted at a while before it was finally revealed she survived a shooting.
- Official Couple: With Danny.
- Portrayed by: Eddie Cahill
- Born Detective
- Broken Pedestal: His mentor, Moran, turned out to be dirty.
- Deadpan Snarker
- Fair Cop
- Foolish Sibling, Responsible Sibling: The Responsible to little sister Sam's Foolish.
- The Lost Lenore: Angell.
- Official Couple: Was one with Angell before she died.
- Stepford Smiler: After Angell's death.
- Portrayed by: Hill Harper
- Portrayed by: Robert Joy
- Anonymous Benefactor: The newspapers dubbed him 'the Guardian Angel' for his $1 million gifts to families several victims whose cases had really stuck with him.
- The Coroner
- Fan Nick Name: Sid's Creepy Place.
- Non-Idle Rich
- Rags to Riches: He wasn't exactly poor before, but he wasn't wealthy either. Now he's made a bundle on his pillow invention.
- Secretly Dying: He revealed to Jo that he has advanced Non-Hodgkin's Lymphoma. Word of God says he will not die onscreen, but it's indicated he's heading for an end.
- Secretly Wealthy: Though that may be changing now, since anyone who isn't Jo and possibly Mac (the one who knows and the one who may or may not know) has to notice the piano in the morgue.
- Supreme Chef
- Too Much Information: Likes to overshare at times.
- Portrayed by: AJ Buckley
Det. Jessica Angell
- Portrayed by: Emmanuelle Vaugier
- Portrayed by: Vanessa Ferlito
- Brainy Brunette
- Deadpan Snarker
- Fair Cop: Some suspects actually made passes towards her during interrogations.
- Stuffed in the Fridge: Wound up fired for thinking of tampering with evidence in a serial rape case, then killed by the same perp. She somehow manages to leave behind evidence during the attack that helps the CSIs finally nail him.
- Thanatos Gambit: Aidan manages to make her murder into one of these.
- Tomboyish Name
- Unfortunate Name: Considering she winds up being burned beyond recognition...
- Portrayed by: Sela Ward
- Portrayed by: Claire Forlani
- Put on a Bus: In Season 4.
- False Soulmate: To Mac.
- Second Love: One of the candidates for Mac; this arc and her character were aborted when the character of Jo Danville replaced Stella Bonasera.
- Portrayed by: Kyle Gallner
Mac's stepson. Reed is the son who Mac's late wife, Claire, gave up for adoption before meeting Mac. When Reed went looking for his biological mother, he met Mac instead.
- Portrayed by: Megan Dodds
The sister of Mac's partner, Stan, who was killed in the line of duty. When Lindsay and Jo made Mac a Facebook page to demonstrate during a case how easily someone could be impersonated, Mac left the page up, and he and Christine reconnected and have been dating ever since. After going through a lot in seasons 8 and 9, Mac proposed to her at the end of season 9, and she accepted.
- Bound and Gagged: When she's abducted in "Seth and Apep."
- Heroic BSoD: She's clearly having residual issues from her ordeal in the NY/LV crossover, "In Vino Vertas," as evidenced by "Blood Actually."
- Second Love: To Mac. (Peyton subverted it; they appeared in love, but it was obvious by the end that he wasn't ready, and she ultimately left him. His bond with Christine is much more obvious and genuine-feeling.)
- Supreme Chef
Detective Jamie Levato
- Portrayed by: Natalie Martinez
The third recurring female detective after Aiden and Angell.
- Portrayed by: Kelly Hu
Chief of Detectives Brigham Sinclair
- Portrayed by: Mykelti Williamson
- Portrayed by: Edward Furlong