All 107 actors in both Cold Case and Law & Order: LA
107 actors have appeared in both Cold Case and Law & Order: LA, across 178 episodes. The most-credited is Bonnie Root, A.D.A. Alexandra Thomas in Cold Case and Maura Dillon in Law & Order: LA.
| Actor | In Cold Case | In Law & Order: LA | Eps | Eps |
|---|---|---|---|---|
| Bonnie Root | A.D.A. Alexandra Thomas | Maura Dillon | 6 | 1 |
| Robin Weigert | Anna Mayes | Larry's Sister | 3 | 1 |
| Elaine Kagan | Gina Carroll (2005) | Judge Sonia Hirsh | 1 | 2 |
| Melinda Page Hamilton | Janie Stillman | Attorney | 2 | 1 |
| Dean Norris | Wayne Nelson (1994-2006) | Bob Kentner | 1 | 1 |
| Bellamy Young | Audrey Metz (1938) | Monica Jarrow | 1 | 1 |
| Conor O'Farrell | Brogan Cooper (1968) | Defense Attorney Lane Garfield | 1 | 2 |
| Frederick Koehler | Neil Beaudry | SID Tech Gilbert | 1 | 1 |
| James Morrison | Carson Finch | Gray Campbell | 1 | 1 |
| Jeff Fahey | Darren Malloy '09 | Terry Briggs | 1 | 1 |
| K Callan | Helen Russell (2006) | Louise Hammond | 1 | 1 |
| Patrick Fischler | Monty Moran '53 | Defense Attorney Josh Solomon | 1 | 1 |
| Reed Diamond | Darren Musk | Franklin Citron | 1 | 1 |
| Taylor Handley | Steve Jablonski | Eric Kenter | 1 | 1 |
| Tom Virtue | Matthew (1968) | Rogan Malone | 1 | 1 |
| Bart McCarthy | Dick Wallace '08 | Ted Mullin | 1 | 1 |
| Dale Dickey | Reba Dautry | Sally Ricks | 1 | 1 |
| Dee Wallace | Charlotte Jones (2005) | Ellen Powell | 1 | 1 |
| Gareth Williams | Ian McGowan | Jim Bikel | 1 | 1 |
| Jay Karnes | Artie Russo | Jim Roman | 1 | 1 |
| John Kapelos | John Butler | Mark Buckley | 1 | 1 |
| Julio Oscar Mechoso | Victor Martinez | Luis Valdez | 1 | 1 |
| Marlene Forte | Yesenia Ramos | Inez Gomez | 1 | 1 |
| Michael O'Neill | Warren Cousins (2005) | Trudy's Attorney | 1 | 1 |
| Paula Malcomson | Marlene Bradford | Jill Jennings | 1 | 1 |
| Raphael Sbarge | Henry Raymes | Dennis Ackroyd | 1 | 1 |
| Rob Benedict | Steve Burke '89 | Adam Yarborough | 1 | 1 |
| Alla Korot | Alice Mills '67 | Anna Ackroyd | 1 | 1 |
| Deborah Van Valkenburgh | Geraldine | Liz Knight | 1 | 1 |
| Kate McNeil | Beth Adams (2005) | Patricia Nelson | 1 | 1 |
| Larry Herron | Andrew 'Huxtable' Garrett '91 | Sgt. Daniel Bart | 1 | 1 |
| Nancy Youngblut | Dawn Wheeler (2008) | Jane Lee Rayburn | 1 | 1 |
| Robert Baker | Buck Lowman (1976) | Buddy | 1 | 1 |
| Steven Culp | Evan Price | Ben Corrigan | 1 | 1 |
| Tim DeKay | Geoff Taylor (2004/2006) | Don Alvin | 1 | 1 |
| Roberto Sanchez | Commander | Deputy Warden Fisher | 1 | 2 |
| Tony Pasqualini | Emmerich | Judge Rudolph Patino | 1 | 2 |
| Aaron Hill | Mike 'Bad Moon' McShane | Patrick Scott | 1 | 1 |
| Anne Gee Byrd | Mrs. Jablonski (2006) | Sandra Fuller | 1 | 1 |
| Christopher Cousins | Ned Burton (2005) | Nelson's Lawyer | 1 | 1 |
| David A. Kimball | Nick Logan (2005) | Dr. Peter Weinstein | 1 | 1 |
| Erin Cahill | Frances Stone | Annette Kay | 1 | 1 |
| Jonathan Scarfe | Will Paige (1938) | Douglas Cantu | 1 | 1 |
| Paul Vincent O'Connor | Paul Nelson | Judge Franklin Ridgeway | 1 | 1 |
| Rebecca Lowman | Bettie Petrowski | Anna Denton | 1 | 1 |
| Roxana Brusso | Abby Santos | Ava Ruiz | 1 | 1 |
| Saxon Trainor | Jane | Cindy Heller | 1 | 1 |
| Valeri Ross | Truly Sinclair | Sheila Watson | 1 | 1 |
| Erika Ringor | Dr. Pascal | Officer Venuti | 1 | 2 |
| Al Pugliese | Otis Petrowski (2005) | Detective Kavanaugh | 1 | 2 |
| Blake Shields | Barry Tepler | Blake Humphry | 1 | 1 |
| Daniel Hugh Kelly | Elliot Glick '08 | Judge Royce | 1 | 1 |
| Jeff Kober | Jack Dubinski | Toomey | 1 | 1 |
| Kerry O'Malley | Suzie Hill '10 | Alice Darnell | 1 | 1 |
| Larry Clarke | Father Pat McGuire (1976) | Don Wheeler | 1 | 1 |
| Peter MacKenzie | Harvey James | Attorney Simms | 1 | 1 |
| Robin Thomas | Roger Felice (2006) | Marty Fox | 1 | 1 |
| Sam Ball | Randy Price (1985) | Zack Kinney | 1 | 1 |
| Chris Ellis | Jim Horn (2008) | D.A. Walter Exley | 1 | 1 |
| Colby French | Seth | Doug | 1 | 1 |
| Lisa Long | Helen Holtz (1964) | Ingrid Farraday | 1 | 1 |
| Michael Massee | Kiril | Denis Watson | 1 | 1 |
| Steve Vinovich | McDuff (1945) | Norman Swift | 1 | 1 |
| Casey McCarthy | Gabby Weiss | Ellen | 1 | 1 |
| Daphne Ashbrook | Kyle Cramer (2007) | Jodi Morris | 1 | 1 |
| Geoffrey Rivas | Salvador Martin | Mark Robles | 1 | 1 |
| Iona Morris | Alice Watson '09 | Judge Linda Day | 1 | 1 |
| Irene Tsu | Da Chun Lu '09 | Christina Yu | 1 | 1 |
| J. Downing | Leon Kincade | Douglas Kasdan | 1 | 1 |
| J.R. Cacia | Lance Katrola '86 | Steve Holt | 1 | 1 |
| Lawrence Pressman | Robert "Dobber" Metz (2007) | Judge Justin Conway | 1 | 1 |
| Lucinda Jenney | Shirley Reed | Professor | 1 | 1 |
| Michael Enright | Ric Yanko '09 | Nick Libergal | 1 | 1 |
| Robert Cicchini | Paul Chaney | Restaurant Owner | 1 | 1 |
| Robert F. Lyons | Scott "Skiz" Stenkovic (2006) | Phil Gradin | 1 | 1 |
| Sonita Henry | Junita Renaldo | Joy Glick | 1 | 1 |
| Ajgie Kirkland | Buster Large '09 | Inventory Manager Nelson | 1 | 1 |
| Andy Fischer-Price | Huck Oberland (1964) | Stevie | 1 | 1 |
| John Prosky | Dr. Thomas Rabinski | Dr. Gouldin | 1 | 1 |
| Mauricio Mendoza | Carlos Garcia (2007) | Mexican Border Guard | 1 | 1 |
| Stacy Hall | Guard | Guard | 1 | 1 |
| Ameenah Kaplan | Leticia Castillo | SID Tech | 1 | 1 |
| Cynthia Frost | Mrs Clark | Dorothy Lane | 1 | 1 |
| Ron Bottitta | Malcolm Kent '08 | Grisha | 1 | 1 |
| John Churchill | Geoffrey Manning '66 | Don Meech | 1 | 1 |
| M.J. Karmi | Myrna Nimmo | Elizabeth Gradin | 1 | 1 |
| Matthew Alan | Norm Fawnshawe '67 | Billy Russ | 1 | 1 |
| Michael A. DiBacco | Guard | Officer Jackson | 1 | 1 |
| Weston I. Nathanson | Warden | Judge Abe Volper | 1 | 1 |
| Cleavon McClendon | Darnell Brent (1991) | Phillip "P-Dawg" Rice | 1 | 1 |
| Debra Leigh | Mrs. Billingsley | Court Clerk | 1 | 1 |
| Elizabeth Sampson | Karin Hensley (2007) | Sheila Lester | 1 | 1 |
| Michael Raynor | State Detective #2 | Vince Braden | 1 | 1 |
| Ray Stoney | James Upshaw (1967/1968) | SID Tech Carson | 1 | 1 |
| Jon Budinoff | Renaldo Ramos (1991) | Arturo | 1 | 1 |
| Chuck McCollum | Lawyer #1 | Bud Tancock | 1 | 1 |
| Jamison Haase | Ronnie Jr. (1987) | Beach Cop | 1 | 1 |
| Keith Pillow | E.R. Doctor / EMT | Judge James Deegan | 1 | 1 |
| Rachel Quaintance | Ruth (1972) | KNBC Reporter | 1 | 1 |
| David Landry | Sweaty Mechanic '44 | Officer Cortina | 1 | 1 |
| Jim Jansen | Dr. Russell Kearns (1963) | Cameron Reardon | 1 | 1 |
| Kim Estes | Clay Murphy '09 | Foreman | 1 | 1 |
| Nick Hoffa | Opponent '63 | Officer Dominick | 1 | 1 |
| Nicole Pettis | Althea Johnson '93 | Diana McDermott | 1 | 1 |
| Zach Lewis | Bert Walters '60 | Captain James Locke | 1 | 1 |
| Wiley Pickett | Ed Valentine (1953) | Fireman #1 | 1 | 1 |
| Caleb Moody | Kenny O'Brien (1964) | Wounded Male Survivor | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.