All 56 actors in both S.W.A.T. and Westworld
56 actors have appeared in both S.W.A.T. and Westworld, across 199 episodes. The most-credited is Louis Ferreira, William "Buck" Spivey in S.W.A.T. and Dr. Alpert in Westworld.
| Actor | In S.W.A.T. | In Westworld | Eps | Eps |
|---|---|---|---|---|
| Louis Ferreira | William "Buck" Spivey | Dr. Alpert | 9 | 1 |
| Timothy V. Murphy | Arthur Novak | Coughlin | 3 | 2 |
| Izabella Alvarez | Amy | Lawrence's Daughter | 1 | 7 |
| Chris Browning | Otto Brady | Holden | 1 | 2 |
| Brian Howe | Craig Rosengarden | Sheriff Pickett | 1 | 3 |
| Eddie Shin | Officer David Wong | Henry | 1 | 3 |
| Lena Georgas | Isabella Pearl | Lori | 1 | 2 |
| Alex Fernandez | Jorge Romero | Mora | 1 | 1 |
| Jonathan Medina | Mayor Castro | QA Responder | 1 | 1 |
| Kelvin Han Yee | Jae Kim | Foreman | 2 | 1 |
| Ward Roberts | Ricken | New Walter | 1 | 3 |
| Dusty Sorg | Iron Mike | Sketchy Guest | 1 | 1 |
| J.B. Tadena | DEA Special Agent Bryant | QA | 1 | 1 |
| Cara Mitsuko | Christine Thomson | Tech Supervisor | 1 | 1 |
| Emmie Nagata | Julia Soto | Wife | 1 | 1 |
| Rafael Cabrera | Pedro Suarez | Guard | 1 | 1 |
| Sierra Swartz | Taylor | Temperance Dolores | 1 | 1 |
| David Douglas | Will | Gitlitz | 1 | 2 |
| Greg Audino | Nate | Benson | 1 | 3 |
| Evan Holtzman | Officer Kowalski | Narrative Tech | 1 | 1 |
| Jack Conley | Kevin Weller | Monroe | 1 | 1 |
| Michael Filipowich | Damian Cassata | Joe | 1 | 1 |
| Michele Boyd | Val | Temperance Armistice | 2 | 1 |
| Travis Hammer | Rick Fontana | Leering Guest | 1 | 1 |
| Scott Lang | Dan, Dino, Jackson Nix | Lead Delos Guard | 3 | 1 |
| Carlos E. Campos | Brett | Surveillance Tech | 1 | 1 |
| David Atkinson | Carlton | Biker | 1 | 1 |
| Nikhil Pai | Doctor | Concerned Tech | 1 | 1 |
| Sonny Saito | Inspector Benjiro Yoshida | Emissary | 1 | 1 |
| Al Coronel | Sgt. Duarte | President Adrian Filo | 1 | 1 |
| Anthony Traina | Keenan | Gangster in Handcuffs | 1 | 1 |
| Brenna Otts | Mother | Coy Female Host | 1 | 1 |
| Steven Allerick | Guard | Delos Guard | 1 | 1 |
| Alan Pietruszewski | Donovan Watson | Commanding Officer | 1 | 1 |
| Cassandra Blair | Guerra | Administrator | 1 | 1 |
| Dieterich Gray | Tony Barker | Rail Baron | 1 | 1 |
| Nanrisa Lee | Journalist | Narrative Tech | 1 | 1 |
| Nathan People | Wes | Deputy | 1 | 1 |
| Travis Johns | Pit Chief Ron | Python Cowboy | 1 | 1 |
| Cosima Cabrera | Marta | Behavior Tech | 1 | 1 |
| Jenson Cheng | Ren | Liang | 1 | 1 |
| Joshua Dov | Arnold Boseman | Python Cowboy | 1 | 1 |
| René Ashton | Sharon | Female Guest | 1 | 1 |
| Blaine Gray | Mike McGill | QA Captain | 1 | 1 |
| Cody Banta | Inmate Losa | George (Robot) | 1 | 1 |
| David Bianchi | Michael Collins | PMC #3 | 1 | 1 |
| Troy Ian Hall | Knox | Levon | 1 | 1 |
| Albert Kong | Peter Kwon | QA Responder | 1 | 1 |
| Anthony Molinari | Venice Bank Manager | Local | 1 | 1 |
| Bret Eric Porter | Charlie | Union Scout | 1 | 1 |
| Hays McEachern | Carl | Soldier | 1 | 1 |
| Eddie Perez | Cartel Soldier #1 | Nurse #1 | 1 | 1 |
| Tim Fox | Josh Palmer | Burley Guest | 1 | 1 |
| Zack Duhame | Merc Hunter #3 | QA Officer | 1 | 1 |
| Mataeo Mingo | James | Boy of 8 | 1 | 1 |
| Annie Karstens | Dr. Green | Female Tech | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.