All 76 actors in both Once Upon a Time and The X-Files
76 actors have appeared in both Once Upon a Time and The X-Files, across 374 episodes. The most-credited is Beverley Elliott, Granny in Once Upon a Time and Raven in The X-Files.
| Actor | In Once Upon a Time | In The X-Files | Eps | Eps |
|---|---|---|---|---|
| Beverley Elliott | Granny | Raven | 59 | 1 |
| Nicholas Lea | Michael Tillman/woodcutter | Agent Alex Krycek, Michael | 1 | 25 |
| Timothy Webber | The Apprentice | Detective Talbot, Dr. Paul Farraday, Jess Harold | 10 | 3 |
| Bill Dow | Mayor Tomkins | Dr. Charles Burks, Dad, Dr. Rick Newton | 1 | 9 |
| Miguelito Macario | Bashful | Tattooed Prisoner | 36 | 1 |
| Barbara Hershey | Cora | Erika Price | 14 | 3 |
| Annabeth Gish | Anita | Special Agent Monica Reyes | 1 | 7 |
| Alan Dale | King George / Albert Spencer | Toothpick Man | 9 | 4 |
| Eric Keenleyside | Sir Maurice / Moe French | Lance Kernof | 6 | 1 |
| Tony Amendola | Geppetto / Marco | Cigarette Smoking Pontiff | 9 | 1 |
| Gabrielle Rose | Ruth | Dr. Zenzola, Mrs. Anita Budahas | 4 | 2 |
| Hrothgar Mathews | Carny | Creighton Jones, Galen Muntz, Jack | 1 | 4 |
| Abraham Benrubi | Arlo | Big Mike | 1 | 1 |
| David Cubitt | Robert | Captain Barclay | 1 | 1 |
| Hank Harris | Dr. Henry Jekyll | Dylan Lokensgard | 5 | 1 |
| Ryan Robbins | Sir Morgan | Murphy | 1 | 1 |
| Chilton Crane | Hilda | Sharon Graffia, Margaret Hohman, Mother at Bus Station | 3 | 4 |
| Jeff Gulka | Munchkin #1 | Gibson Praise | 1 | 6 |
| John Pyper-Ferguson | Kurt Flynn | Det. John Kresge, Paul | 1 | 3 |
| Doug Abrahams | Sheriff | Agent #2, Detective Neary, Farbaugh | 1 | 5 |
| Brad Dourif | Zoso | Luther Lee Boggs | 2 | 1 |
| C. Ernst Harth | Abraham, Burly Man, Ogre | Huge Man | 3 | 1 |
| Glynis Davies | Spinster #2 | Ellen, Monica Landis, Nelson | 1 | 3 |
| John DeSantis | The Dove | Band-Aid Nose Man | 1 | 1 |
| Kerry Sandomirsky | Corrections Agent | Joanne Steffen, Tracey | 1 | 2 |
| Paul Jarrett | Nobleman | James Earl Ray, Upshaw | 1 | 2 |
| Zak Santiago | Prince Henry | Mr. Green | 1 | 2 |
| Ben Wilkinson | Hank | Dean Cavalier | 1 | 1 |
| Brent Stait | The Author | Timothy Mayhew, Corp. Taylor | 1 | 3 |
| Candus Churchill | Librarian | Shirley | 1 | 1 |
| Chris Shields | Military Advisor | Detective Dross | 1 | 1 |
| Kacey Rohl | Megara | Agnes | 1 | 1 |
| Ken Kramer | Bossy | Dr. Alexander Ivanov, Dr. Browning, Dr. Terrance Allen Berube | 1 | 3 |
| Richard Newman | Jeremiah | Dr. Rumanovitch | 1 | 1 |
| Sharon Taylor | Witch of the East | Diana Eggers | 1 | 1 |
| David Bloom | Mr. “K” Krzyszkowski | Stress Man | 2 | 1 |
| Gabrielle Miller | Mother Flora | Brenda J. Summerfield, Paula Gray | 1 | 2 |
| Giacomo Baessato | Grif, Sleeping Man | Doctor | 2 | 1 |
| Paul McGillion | Knave of Hearts / Will Scarlet | Fred Neiman | 2 | 1 |
| Rick Dobran | Raskind | Sergeant Armando Gonzales | 1 | 2 |
| Tom Pickett | Bishop | Cop | 2 | 1 |
| Steve Makaj | Captain | Scott Ostelhoff, Frank Kiveat, Patrolman | 1 | 4 |
| Cory Rempel | Clayton | Young Walter Skinner | 1 | 1 |
| Dalias Blake | Palace Guard | Cop #2 | 1 | 1 |
| Henri Lubatti | Lumiere | Dr. Wilkenson | 1 | 1 |
| Mark Gibbon | Head Troll | Guard | 2 | 1 |
| Rebecca Wisocky | Madame Faustina | Jackie Goldman | 1 | 1 |
| Scott Hylands | Captain | General Benjamin Bloch | 1 | 1 |
| Elizabeth McCarthy | Mob Girl, Wife | Shopper | 2 | 1 |
| Patti Allan | Blind Witch, Miss Ginger | Mrs. Kernof | 2 | 1 |
| Aaron Douglas | Fendrake the Healer | Lindquist | 1 | 1 |
| Jillian Fargey | Fairy Godmother | Kaye Schilling | 1 | 1 |
| Peter Bryant | Jailer | Uniformed Cop | 1 | 1 |
| Ryan Hesp | Quartermaster | Henchman #1 | 1 | 1 |
| Ty Olsson | Hordor | Younger Orderly | 1 | 1 |
| Andrew Airlie | George Darling | Attorney, Rob | 1 | 2 |
| Gerry Rousseau | Cora's Father | Homeless Man, Mechanic | 1 | 2 |
| Sean Campbell | Middle Aged Man | Local Cop, Officer Sean | 1 | 2 |
| Jonathan Whitesell | Hercules | Kyle Gilligan | 1 | 1 |
| Julian D. Christopher | Adoption Agent | Dr. Oscar Griffiths | 1 | 1 |
| Nikolai Witschl | Server | Dr. Hill | 1 | 1 |
| Scott Heindl | Bartholomew | Billy | 1 | 1 |
| Catherine Lough Haggquist | Fairy Godmother | Dr. Richmond | 1 | 1 |
| Kwesi Ameyaw | Dr. Thatcher | Judge | 1 | 1 |
| Nneka Croal | Social Worker | Squad Leader | 1 | 1 |
| Saraphina Joachim | Madame Leota | Jennifer Workman | 1 | 1 |
| Bobby Stewart | Older Man | Deputy | 1 | 1 |
| Brian Knox McGugan | Drunk Charlie's Friend | Officer #1 | 1 | 1 |
| Samuel Patrick Chu | Frightened Soldier | Warren | 1 | 1 |
| Guy Fauchon | Vortigan | Dr. Dave Rednon | 1 | 1 |
| Jeremy Schuetze | Young Man | Young CSM | 1 | 1 |
| Mik Byskov | Black Knight Archer | Accosting Man | 1 | 1 |
| Naiah Cummins | Uniformed Police | Nurse | 1 | 1 |
| Robert Mann | Peasant #1 | Hillbilly Ed | 1 | 1 |
| Alison Wandzura | Hostess | Cynthia | 1 | 1 |
| Hannah Longworth | Adopted Little Girl | William (6 yr old) | 1 | 1 |
← Once Upon a Time × The X-Files
Cast data from TVmaze, licensed CC BY-SA 4.0.