Actors in both Star Trek and The Twilight Zone
67 actors have appeared in both Star Trek and The Twilight Zone, across 235 episodes. The most-credited is George Takei, Lt. Hikaru Sulu, Mirror Sulu in Star Trek and Arthur Takamori / Taro in The Twilight Zone.
| Actor | In Star Trek | In The Twilight Zone | Eps | Eps |
|---|---|---|---|---|
| George Takei | Lt. Hikaru Sulu, Mirror Sulu | Arthur Takamori / Taro | 47 | 1 |
| Jon Lormer | Old Man, Tamar | Minister, Man, Strauss | 2 | 4 |
| William Shatner | Dr. Janice Lester (in Kirk's body), Mirror Kirk, Negative Captain James T. Kirk | Bob Wilson, Don Carter | 3 | 2 |
| Don Keefer | Cromwell | Dan Hollis, Fred Danziger, Spierto | 1 | 3 |
| Arlene Martel | T'Pring | Girl in Bar, Nurse in Morgue | 1 | 2 |
| Frank Overton | Elias Sandoval | Harry Wheeler, Robert Sloan | 1 | 2 |
| Ian Wolfe | Mr. Atoz, Septimus | Schwimmer | 2 | 1 |
| James Gregory | Dr. Tristan Adams | Air Force General, Confederate Sergeant | 1 | 2 |
| John Fiedler | Commissioner Hengist | Field Rep #3, Mr. Dundee | 1 | 2 |
| Joseph Ruskin | Galt | Genie, Kanamit | 1 | 2 |
| Morgan Jones | Col. Nesvig | Captain, Trooper Dan Perry | 1 | 2 |
| Stanley Adams | Cyrano Jones | Jensen, Rollo | 1 | 2 |
| Theodore Marcuse | Korob | Citizen Gregori, Farraday | 1 | 2 |
| William Windom | Commodore Matthew Decker | Dr. Wallman, The Major | 1 | 2 |
| James Daly | Flint | Gart Williams | 1 | 1 |
| Joan Marshall | Areel Shaw | Wilma | 1 | 1 |
| Julie Newmar | Eleen | Miss Devlin | 1 | 1 |
| Leonard Nimoy | Mirror Spock | Hansen | 1 | 1 |
| Mariette Hartley | Zarabeth | Sandra Horn | 1 | 1 |
| Paul Fix | Dr. Piper | Mr. Colby | 1 | 1 |
Cast data from TVmaze, licensed CC BY-SA 4.0.