Actors in both Smallville and Supernatural
389 actors have appeared in both Smallville and Supernatural, across 544 episodes. The most-credited is Alessandro Juliani, Dr. Emil Hamilton in Smallville and Adam in Supernatural.
| Actor | In Smallville | In Supernatural | Eps | Eps |
|---|---|---|---|---|
| Alessandro Juliani | Dr. Emil Hamilton | Adam | 14 | 1 |
| James Marsters | Milton Fine / Braniac | Donald Stark | 14 | 1 |
| Alaina Huffman | Dinah Lance / Black Canary | Josie Sands / Abaddon | 6 | 8 |
| Sarah Jane Redmond | Nell Potter | Kathy Randolph, Lily Markham | 11 | 2 |
| Mike Dopud | Security Guard George | Jim Jenkins | 10 | 1 |
| Ty Olsson | Officer Talbert | Benny Lafitte, Eli | 1 | 10 |
| Adrian Holmes | Basqat, Griff | James Turner, Captive Demon | 7 | 3 |
| Emmanuelle Vaugier | Dr. Helen Bryce | Madison | 9 | 1 |
| Erica Carroll | Inza Nelson | Hannah, Mother in the Park, Nurse | 1 | 9 |
| Samantha Ferris | Warden Anita Stone | Ellen Harvelle | 1 | 9 |
| Sharon Taylor | Faora | Ardat, Female Demon | 7 | 2 |
| Tahmoh Penikett | Wesly Keenan, Vince Davis | Ezekiel / Gadreel | 3 | 6 |
| Alisen Down | Lillian Luthor | Alice Cassity, Penny Raider | 5 | 2 |
| Anna Galvin | Gina | Colette Mullen / Abaddon, Mrs. Fremont | 5 | 2 |
| Ari Cohen | Regan Matthews | Miles Tarnower | 6 | 1 |
| Colin Ford | Evan Gallagher | Teenage Sam Winchester | 1 | 6 |
| Connor Stanhope | Young Lex Luthor, Alexander Luthor Lx-15 | Little Boy #2, Matty | 5 | 2 |
| Stephen Lobo | Randall Brady | Rick Sanchez | 5 | 2 |
| Anna Williams | Eva Greer, Monica | Ruby #1 | 5 | 1 |
| Colin Lawrence | Agent Stocker, Captain Nichols, Doctor | Dr. Gregory Marion, Jason, Reggie Hull | 3 | 3 |
Cast data from TVmaze, licensed CC BY-SA 4.0.