Directed by
| Richard A. Colla | ||
Writing Credits
| Gene Roddenberry | ... | (teleplay) and |
| Gene L. Coon | ... | (teleplay) |
| Gene Roddenberry | ... | (story) |
Cast (in credits order) complete, awaiting verification
| Robert Foxworth | ... | Questor | |
| Mike Farrell | ... | Jerry Robinson | |
| John Vernon | ... | Geoffrey Darro | |
| Lew Ayres | ... | Vaslovik | |
| James Shigeta | ... | Dr. Chen | |
| Robert Douglas | ... | Dr. Michaels | |
| Dana Wynter | ... | Lady Helena Trimble | |
| Majel Barrett | ... | Dr. Bradley | |
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Ellen Weston | ... | Allison Sample |
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Reuben Singer | ... | Dr. Gorlov |
| Fred Sadoff | ... | Dr. Audret | |
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Gerald Peters | ... | Randolph (as Gerald Saunderson Peters) |
| Walter Koenig | ... | Administrative Assistant Phillips | |
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Edyie Girard | ... | Stewardess |
| Alan Caillou | ... | Immigration Officer | |
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Lal Baum | ... | Col. Hendricks |
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Patti Cubbison | ... | 1st Secretary |
| Rest of cast listed alphabetically: | |||
| Ian Abercrombie | ... | Charlie (uncredited) | |
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Arthur Tovey | ... | Observer at Craps Table (uncredited) |
Produced by
| Jeffrey L. Hayes | ... | executive producer |
| Howie Horwitz | ... | producer |
| Paul Rapp | ... | associate producer |
| Gene Roddenberry | ... | executive producer |
Music by
| Gil Mellé | ||
Cinematography by
| Michael D. Margulies | ... | director of photography (as Michael Margulies) |
Editing by
| Robert L. Kimble | ||
| J. Terry Williams | ||
Art Direction by
| Philip Barber | ... | (as Phil Barber) |
Set Decoration by
| John McCarthy Jr. | ... | (as John McCarthy) |
Costume Design by
| Grady Hunt | ||
Production Management
| Henry Kline | ... | unit manager |
| Charles Clement | ... | post production operations head (uncredited) |
Second Unit Director or Assistant Director
| Lester Wm. Berke | ... | assistant director (as Les Berke) |
Sound Department
| John K. Kean | ... | sound (as John Kean) |
Visual Effects by
| Albert Whitlock | ... | special photographic effects |
Editorial Department
| Richard Belding | ... | editorial supervisor |
Music Department
| Hal Mooney | ... | music supervisor |
Additional Crew
| George de Lado | ... | main titles |
| Gene Roddenberry | ... | executive consultant |
