All 65 actors in both Riverdale and Supergirl
65 actors have appeared in both Riverdale and Supergirl, across 263 episodes. The most-credited is Drew Tanner, Fangs Fogarty, Fen Fogarty, Flynn in Riverdale and Student in Supergirl.
| Actor | In Riverdale | In Supergirl | Eps | Eps |
|---|---|---|---|---|
| Drew Tanner | Fangs Fogarty, Fen Fogarty, Flynn | Student | 39 | 1 |
| Robert Baker | Mr. Phillips | Otis Graves | 2 | 12 |
| Brit Morgan | Penny Peabody | Leslie Willis / Livewire | 11 | 4 |
| Nikolai Witschl | Dr. Curdle Jr., Dr. Curdle | Jo Gunraf | 27 | 1 |
| Abby Ross | Midge Klump | Alien Student | 14 | 1 |
| William MacDonald | Principal Featherhead, Warden Norton | James' Surgeon | 19 | 1 |
| Alison Araya | Janet Weiss | District Attorney Diaz | 12 | 1 |
| Paul Lazenby | Manager, Inmate #1 | Mandrax, Lead Fireman | 3 | 3 |
| Scott McNeil | Tall Boy | Toby | 9 | 1 |
| Sam Witwer | Rupert Chipping | Ben Lockwood / Agent Liberty | 5 | 1 |
| Crystal Balint | Dr. Sherry Winters | Secretary Brown | 1 | 3 |
| Françoise Robertson | Tia Teresa | Sarah Walker, Regina Williams | 1 | 5 |
| Fred Henderson | Governor Dooley | Mayor | 3 | 3 |
| Lisa Chandler | Mrs. Conway | Bystander #2, Soccer Mom | 1 | 2 |
| Nickolas Baric | Henchman #1 | Acolyte #2, Infernian Attacker, Rabbit #1 | 1 | 4 |
| Darcy Hinds | Randy Ronson | Control Room Guard, Dealer, Dynamorph | 2 | 3 |
| Adrian Hough | Doc | King Brpxz | 2 | 1 |
| Glenn Ennis | Henchman #3 | Draaga, Eye-Patched Alien | 1 | 2 |
| Reese Alexander | Myles McCoy | Warden | 3 | 2 |
| Kwesi Ameyaw | Dr. Masters | Cassian | 2 | 1 |
| Larry MacDonald | Janitor | Strange Man | 1 | 2 |
| Anita Wittenberg | Dr. Diana Whitley | Glee Club Teacher | 2 | 2 |
| Hamza Fouad | Raphael | Agent Lawrence | 3 | 1 |
| Sandy Wayne Robson | Ted Bishop | Scar | 2 | 1 |
| Angela Moore | Sister Agnes | Principal Coburn | 2 | 1 |
| Marlon Kazadi | Malcolm | Young James | 4 | 1 |
| Emily Tennant | Miss Appleyard | Edna | 1 | 1 |
| Jay Clift | Gunman | Lead FBI Agent | 1 | 1 |
| Robyn Ross | Mrs. Klump | Mom | 4 | 1 |
| Ben Sullivan | Rick | Guard | 1 | 2 |
| David Lennon | Cameron Carver | Cop | 2 | 1 |
| Mark Gibbon | Carl Martin | General Zod | 2 | 1 |
| Anna Van Hooft | Ms. Ronson | Jennifer Bates | 1 | 1 |
| Chris Peters | Police Officer #2 | Second Guard | 1 | 1 |
| Conor Stinson O'Gorman | Shadow Lake Boy #3 | Man | 2 | 1 |
| Kyle Jespersen | Loading Dock Guard | Derek | 1 | 1 |
| Mackenzie Gray | Dr. Curdle | Greggor | 3 | 1 |
| Marci T House | Mrs. Fisher | Dr. Hampton | 1 | 1 |
| Alex Zahara | Uncle Bedford | Little Kryptonian Man | 2 | 1 |
| Harrison MacDonald | Cassidy Bullick | Mummy Bro | 2 | 1 |
| Andrew Wheeler | Marco Marquez | Warden | 1 | 1 |
| Paul Jarrett | Arthur "Artie" Andrews | Nelson Stewart | 1 | 1 |
| Jaeson Lee | Berserker | DEO Agent #1, Police Officer #2 | 1 | 2 |
| Jason Bell | Mr. Conway | Cadmus Guard, COL 1 | 1 | 2 |
| Jay MacDougald | Nuckles Schrute | Guard | 3 | 1 |
| Al McFoster | Mr. Shipley | Secret Service | 1 | 1 |
| Robert Parent | Alpha Stockbroker | Pilot | 1 | 1 |
| Wonita Joy | Counter Lady | Judge | 1 | 1 |
| Andre Anthony | Lenny Junior | Edge's Assistant | 1 | 1 |
| Candus Churchill | Ms. Moore | Judge | 1 | 1 |
| Lucy McNulty | District Attorney | Prosecutor | 1 | 1 |
| Neemish Parekh | Attendee #1 | Hari | 1 | 1 |
| Philip Prajoux | Handsome Man | Guy | 1 | 1 |
| Cameron Forbes | Police Officer #1 | Chief | 1 | 1 |
| Amanda Burke | Ms. Paroo | Dark Kryptonian #2 | 1 | 1 |
| Andrea Kelly Konno | Prosecutor | Mother | 1 | 1 |
| Cameron Park | Restaurant Owner #2 | Heli Pilot | 1 | 1 |
| Chris Cochrane | Brad | Lou | 1 | 1 |
| Kareem Malcolm | Preppy Buyer | Another Student | 1 | 1 |
| Ian Butcher | Don | Lionel Luthor | 1 | 1 |
| Jaren Moore | Customer | Thack | 1 | 1 |
| Shaquan Lewis | Guard | Alien Protestor | 1 | 1 |
| Paul Herbert | Homeless Man | Scientist | 1 | 1 |
| Ese Atawo | Dr. Starling | Counter Protestor | 1 | 1 |
| Jeremy Schuetze | Man in Car | Rob | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.