All 55 actors in both Cold Case and The O.C.
55 actors have appeared in both Cold Case and The O.C., across 248 episodes. The most-credited is Michael Nouri, Kyle Silver in Cold Case and Neil Roberts in The O.C..
| Actor | In Cold Case | In The O.C. | Eps | Eps |
|---|---|---|---|---|
| Michael Nouri | Kyle Silver | Neil Roberts | 1 | 19 |
| Autumn Reeser | Sister Grace Ashley | Taylor Townsend | 1 | 15 |
| Jeff Hephner | David Nelson | Matt Ramsey | 1 | 13 |
| Danielle Bisutti | Mrs. Valentine (1953) | Joan | 1 | 5 |
| Johnny Messner | Ryan Cavanaugh | Lance | 3 | 5 |
| Taylor Handley | Steve Jablonski | Oliver Trask | 1 | 6 |
| Johnny Lewis | Truitt 'Spider' Leland (1998) | Dennis "Chili" Childress | 1 | 9 |
| Dana Davis | Mathilde (1963) | Madison | 1 | 2 |
| Shailene Woodley | Sarah Gunden | Kaitlin Cooper | 1 | 6 |
| AnnaLynne McCord | Becca Abrams (1997) | Hot Girl | 1 | 1 |
| Wilson Bethel | James 'Jimmy' Tully | Brad | 1 | 1 |
| Daphne Ashbrook | Kyle Cramer (2007) | Dawn Atwood | 1 | 5 |
| Jordan Baker | Tara McClaughlin (2007) | Elaine Stevens | 1 | 3 |
| Nichole Hiltz | Doreen Denova (1978) | Gabrielle | 1 | 1 |
| Kat Sawyer | Helen Hargrove (2005) | Head Dean | 1 | 2 |
| Bre Blair | Grace Anderson (1973) | Carrie Spitz | 1 | 1 |
| Ellen Woglom | Kim Jacobi | Brynn | 1 | 1 |
| Michael Reilly Burke | Eric Whitley | Tom Wellington | 1 | 1 |
| Paul Wesley | Petey Murphy (2008) | Donnie | 1 | 1 |
| Robert Picardo | Arthur Lennox | Bill Merriam | 1 | 1 |
| T.J. Thyne | Kip Crowley (1985) | Larry Bernstein | 1 | 1 |
| Timothy Omundson | Luke Ross (1999 / 2008) | Chris Caldwell | 1 | 1 |
| Garrett M. Brown | Roger | Dr. Kenneth Woodruff | 1 | 2 |
| Sven Holmberg | Frankie | Gus | 1 | 2 |
| Jonathon Trent | Joe Vives-Alvarez (1997) | Kyle | 1 | 3 |
| Blake Robbins | David Lake | Don | 1 | 2 |
| Richard Herd | Gene Karnow '08 | Bill "Uncle Shaun" Shaughnessy | 1 | 1 |
| Tom Wright | Doc Win | Paul Glass | 1 | 1 |
| Tony Denison | Mike (2005) | Bobby Mills | 1 | 1 |
| Bradley Stryker | Joey Young | Trey Atwood | 1 | 2 |
| Elayn J. Taylor | Colette (2004) | Dr. Harris | 1 | 2 |
| April Grace | Maeve Bubley | Dr. Burke | 1 | 1 |
| Channon Roe | John 'The Doctor' Norwood '63 | Jake | 1 | 1 |
| Christopher Cousins | Ned Burton (2005) | Greg Fisher | 1 | 1 |
| Rigo Sanchez | Jesus Maldonado | EMT | 1 | 1 |
| Rodney Rowland | Spencer Mason (2007) | Jack Harper | 1 | 1 |
| Samantha Quan | Barbie Yen (2006) | Receptionist | 1 | 1 |
| Jack Guzman | Bartender | Bouncer | 1 | 1 |
| Michael Mantell | Ken Westin (2005) | Jim Mercer | 1 | 1 |
| Paydin LoPachin | Cheerleader #1 (1997) | Michelle | 1 | 1 |
| Dwight Hicks | Opr Super. Bruce Hurt | Sheriff | 1 | 1 |
| Gilbert Glenn Brown | Renaldo Copely (1953) | Officer Patrick | 1 | 1 |
| Hamilton Mitchell | Job | Reverend Donahue | 1 | 1 |
| Mark L. Young | Jed Huxley (1979) | Prepubescent Geek #1 | 1 | 1 |
| Melissa Strom | Paula '81 | Girl #1 | 1 | 1 |
| Paul Ganus | Banker (1983) | Sean Harper | 1 | 1 |
| Stu "Large" Riley | Fat Ray (2002) | Ed | 1 | 1 |
| Carrie Armstrong | Carrie (2004) | Diner Cashier | 1 | 1 |
| Stacey Hinnen | Sweet' Sil Tavern '86 | Gruff Bondsman | 1 | 1 |
| Steve Seagren | Tommy Burke | Nick | 1 | 1 |
| Sean Blakemore | Clyde (1963) | Trauma Dr. | 1 | 1 |
| Tina Morasco | Irene (1968) | Laura Cross | 1 | 1 |
| Mitchell Fink | Tyler Cage | Waiter | 1 | 1 |
| Brian Guest | Al Wasserlauf '69 | Ken | 1 | 1 |
| Michael Canaan | Burly Guy #1 | Cop #3 | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.