All 120 actors in both Castle and How to Get Away with Murder
120 actors have appeared in both Castle and How to Get Away with Murder, across 263 episodes. The most-credited is Arye Gross, Dr. Sidney Perlmutter in Castle and Connor's Lawyer in How to Get Away with Murder.
| Actor | In Castle | In How to Get Away with Murder | Eps | Eps |
|---|---|---|---|---|
| Arye Gross | Dr. Sidney Perlmutter | Connor's Lawyer | 17 | 1 |
| Benito Martinez | FBI Special Agent Sam Walker | Todd Denver | 1 | 16 |
| William R. Moses | Blake Wilder | Special Agent Lanford | 1 | 14 |
| Melinda Page Hamilton | Diana Harris | Special Agent Telesco | 1 | 7 |
| Jack Coleman | Senator William H. Bracken | Mr. Dean | 6 | 1 |
| Mercedes Mason | Marina Casillas | Cora Duncan | 1 | 3 |
| Gloria Garayua | Kristina Curtis | Detective Brianna Davis | 1 | 8 |
| Joseph C. Phillips | Mayor | Alvin Cox | 2 | 1 |
| Dameon Clarke | Scott Dunn | Detective Mumford | 2 | 6 |
| Denise Crosby | Dr. Marion Baker | Judge Chanha Singh | 1 | 1 |
| François Chau | Clifford Lee | Carl's Lawyer | 1 | 1 |
| Judith Scott | Evelyn Montgomery | Attorney Barham | 3 | 1 |
| Kathleen York | Kat Kingsley | Judge Martha Vitkay | 1 | 5 |
| Michael Hyatt | Mrs. Leslie Ruiz | Camila | 1 | 1 |
| Molly Hagan | Daisy May | A.D.A. Nancy Montoya | 1 | 1 |
| Cas Anvar | Dr. Rampanel | Robert Hsieh | 1 | 4 |
| Anne-Marie Johnson | Sondra Kramer | Kendra Strauss | 1 | 2 |
| Jamie McShane | Tony "The Butcher" Valtini | U.S. Attorney Lennox | 1 | 2 |
| Michelle Alegria | Reporter / News Anchor | Desk Anchor | 5 | 2 |
| José Zúñiga | Alfredo Quintana | Jorge Castillo | 1 | 1 |
| Paul Terrell Clayton | Dax Lattimer | Warden Jeffrey Sykes | 1 | 3 |
| Sam Anderson | Principal Duncan | Thomas Fitzgerald | 1 | 1 |
| Jim Abele | Adam Greene | Ted | 1 | 3 |
| Michael Bofshever | Dr. Goldberg | Judge Sabarski | 1 | 3 |
| Laura Coover | Amy Barrett, Susan Watts | Eloise St. Vincent | 2 | 1 |
| Stephanie Faracy | Patty Schultz | Ellen Freeman | 1 | 2 |
| Alex Fernandez | Capt. Marcus Donovan | AG Harold Chavez | 1 | 1 |
| Brynn Thayer | Penelope Keller | Elena Castillo | 1 | 1 |
| Catherine Dent | Beth Tanner | DHS Attorney Ford | 1 | 1 |
| David Andrews | Carl Shelton | Hugh Murphy | 1 | 1 |
| Jason Sims-Prewitt | Uniformed Officer | Police Officer #1 | 1 | 1 |
| Judith Moreland | Sandy Jenkins | Judge Virginia Wilder | 1 | 1 |
| Michael Reilly Burke | Frank Nesbit | Louis Lindgren | 1 | 1 |
| Paula Newsome | Debbie Parker | Joyce Robinson | 1 | 1 |
| Peter Onorati | Sal Malavolta | Leo Lombardo | 1 | 1 |
| Reed Diamond | Dr. Cameron Talbot | David Golan | 1 | 1 |
| Romy Rosemont | Nurse Lockhart | Vera Dewitt | 1 | 1 |
| Spencer Garrett | Evan Pierce | Alexander Ballast | 1 | 1 |
| Tim Russ | Dr. Malcolm Wickfield | Judge Kofi Bonaparte | 1 | 1 |
| Tom Irwin | Simon Campbell | Justice Spivey | 1 | 1 |
| Suleka Mathew | Detective Neely | Ms. Benton | 1 | 2 |
| Bonita Friedericy | Sister Mary | Sandra Guthrie | 1 | 2 |
| Chet Grissom | Agent Gray | Mike Richardson | 1 | 2 |
| David Burke | Chief John Brady | Matthew Thomas | 1 | 1 |
| David Gautreaux | Dr. Oliver Pressing | Art Truco | 1 | 1 |
| Heather Mazur | Gwen Kelly | Heidi Turpin | 1 | 1 |
| Jeff Austin | Mr. Rollins | Sgt. Matthew Joseph | 1 | 1 |
| Jerry Ying | Tech | Soccer Dad | 1 | 1 |
| Jim Turner | Janacek Spivey | George Gabler | 1 | 1 |
| John Getz | Dr. Gustavo Bauer | David Dolan | 1 | 1 |
| Kim Hawthorne | Angela Matthews | Detective Nicholls | 1 | 2 |
| Lisa Kaminir | Captain Edmunds | Dr. Maureen Groff | 1 | 1 |
| Mackenzie Astin | Phillip Bartlett | Noah Baker | 1 | 1 |
| Mark Famiglietti | Scott Weinberg | David Tucker | 1 | 1 |
| Michael McGrady | Brian Reilly | AUSA Hobbs | 1 | 1 |
| Ramona DuBarry | Reporter | Nanda Hashim | 1 | 1 |
| Rob Brownstein | Captain Ziering | Prosecutor Bloomfield | 1 | 1 |
| Stacy Edwards | Jessica Banks | Gretchen Thomas | 1 | 1 |
| Andrea Grano | Mrs. Stan Banks | Judge Alice Williams | 1 | 1 |
| Andy Umberger | Johnny Rosen | AUSA Henry Schuler | 1 | 1 |
| Daniel Steven Gonzalez | Bronx PD Officer | Paramedic #1 | 1 | 1 |
| Janet Song | Nurse | Paramedic | 1 | 1 |
| Joshua Wolf Coleman | Reporter #2 | Ted | 1 | 1 |
| Lilli Birdsell | Samantha Williger | Agnes Willis | 1 | 1 |
| Lily Knight | Gretchen Cutler | Amber Crowley | 1 | 1 |
| Mark Harelik | Pete Benton | Niles Harrington | 1 | 1 |
| Tim Griffin | Spalding Elliot | AUSA Caleb Abernathy | 1 | 1 |
| Mark Berry | Captain Bigelow | Fire Chief Gaines | 1 | 2 |
| Assaf Cohen | Dr. Rusham Haroun | Karim Assaf | 1 | 1 |
| Crystal Coney | Judy Doyle | Reporter #1 | 1 | 1 |
| Elena Campbell-Martinez | Mama | Judge Adrienne Whitman | 1 | 1 |
| Hector Luis Bustamante | William "Billy" Hicks | Pedro Hortua | 1 | 1 |
| Jason Brooks | Ian Harris | Nelson Duvall | 1 | 1 |
| Jeff Doucette | Super | Judge George Danvers | 1 | 1 |
| John Ciccolini | Vinnie Delfino | Morgue Attendant | 1 | 1 |
| Karl T. Wright | Dr. Chuck Vaughn | Judge Bradford Wilkins | 1 | 1 |
| Mageina Tovah | Veronica Harris | Jolene Samuels | 1 | 1 |
| Meera Simhan | Cafe Hostess | Judge Talulah Kendrick | 1 | 1 |
| Tom Billett | Sergio | Rough-Looking Guy | 1 | 1 |
| Carole Gutierrez | Dr. Deb Lander | Pam | 1 | 1 |
| Colby French | NYPD Detective | ADA Barrett Nelson | 1 | 1 |
| Dave Shalansky | Tech #1 | A.D.A. Seth Keough | 1 | 1 |
| Jackie Geary | Maggie Dowd | Jackie Groves | 1 | 1 |
| Bo Kane | Chuck Harrison | Reporter | 1 | 1 |
| Brad Lee Wind | Franco Mancini | Officer Vitelli | 1 | 1 |
| Brian D. Johnson | Ron Hill | Neighbor | 1 | 1 |
| Chic Daniel | Thomas | Lumberjack | 1 | 1 |
| Eamon Hunt | Frank Garrison | Judge Colton Lee | 1 | 1 |
| Hector Hugo | Dr. Neville | Raul | 1 | 1 |
| James McAndrew | Nick Buckley | Clayton | 1 | 1 |
| Jarrod Crawford | Field Tech | Dr. Robin Sinnamby | 1 | 1 |
| Jeris Lee Poindexter | Older Man | James Smalley | 1 | 1 |
| Jesse D. Goins | Spencer's Lawyer | Chief Justice Patrick Montgomery | 1 | 1 |
| Juan Alfonso | Delivery Man | Jailer | 1 | 1 |
| Keith Chandler | Tech | Security Officer | 1 | 1 |
| Pamela Shaddock | Marcella | Ms. Medick | 1 | 1 |
| Albie Selznick | Dr. Paul Devlin | Edith's Lawyer | 1 | 1 |
| Antonio Elias | Chris Nunez | Jimmy Wordshaw | 1 | 1 |
| Carlease Burke | Storage manager | Prosecutor | 1 | 1 |
| Eileen Fogarty | Élodie | Bar Representative | 1 | 1 |
| Hal Devi | Company Sergeant | Police Officer | 1 | 1 |
| Kimberly Fox | Newscaster | Philly Police Officer | 1 | 1 |
| Nick Gracer | Vlad Bardinov | Felix Michel | 1 | 1 |
| Scott Broderick | Richie 'The Pitbull' Falco | Quiet Male Inmate | 1 | 1 |
| Stephen Oyoung | Guard | E.R. Doctor | 1 | 1 |
| Tiffany Jeneen | Motel Maid | Morgue Clerk | 1 | 1 |
| Albert Malafronte | Frank Thomas / Anatoly Arkady | Judge Erwin Coughlin | 1 | 1 |
| Brandon Morales | Cop | Police Officer #1 | 1 | 1 |
| Dinora Walcott | Det. Mindy Stegner | Reporter Carol | 1 | 1 |
| Eme Ikwuakor | Worker | Hank | 1 | 1 |
| Peggy Dunne | Mrs. Heller | Sharon Sherwin | 1 | 1 |
| Steven M. Gagnon | Colonel Fortis | Officer James Nelson | 1 | 1 |
| Van Epperson | Postal Clerk | Dr. Silas Root | 1 | 1 |
| Abhimanyu Katyal | A.D. | Dr. Takahamo | 1 | 1 |
| Nicola Lambo | State Court Officer | Caplan & Gold Partner 1 | 1 | 1 |
| David L. King | News Producer | Dr. Belridge | 1 | 1 |
| Suzanne Sena | Emily's Mom | Best Friend | 1 | 1 |
| Warren Paul | Vince Bianchi | Agent 1 | 1 | 1 |
| Mark Adair-Rios | Mario "Trucho" Mendoza | Dr. Erik Turner | 1 | 1 |
| Peggy Blow | Hotel Resident | Croupier | 1 | 1 |
← Castle × How to Get Away with Murder
Cast data from TVmaze, licensed CC BY-SA 4.0.