| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Bill Reed | Crew | Directing | Director | 6 |
 Chuck Menville | Crew | Writing | Writer | 2 |
 D.C. Fontana | Crew | Production | Producer, Writer | 22 |
 David Gerrold | Crew | Writing | Writer | 2 |
David P. Harmon | Crew | Writing | Writer | 1 |
 David Wise | Crew | Writing | Writer | 1 |
 Gene Roddenberry | Crew | Production | Producer, Writer, Creator | 22 |
 Hal Sutherland | Crew | Directing | Director | 16 |
 James Schmerer | Crew | Writing | Writer | 1 |
Joyce Perry | Crew | Writing | Writer | 1 |
Larry Brody | Crew | Writing | Writer | 1 |
 Larry Niven | Crew | Writing | Writer | 1 |
 Lou Scheimer | Crew | Production | Producer | 22 |
 Norm Prescott | Crew | Production | Producer | 22 |
Paul Schneider | Crew | Writing | Writer | 1 |
Samuel A. Peeples | Crew | Writing | Writer | 1 |
 Stephen Kandel | Crew | Writing | Writer | 2 |
 Walter Koenig | Crew | Writing | Writer | 1 |
Marc Daniels | Crew | Writing | Writer | 1 |
Fred Bronson | Crew | Writing | Writer | 1 |
Joseph Simon | Crew | Editing | Editorial Consultant | 6 |
Don Christensen | Crew | Art | Art Direction | 22 |
David Gerrold | Cast | EM / 3 / Green (voice) (uncredited) | 1 | |
 DeForest Kelley | Cast | Actor | Leonard McCoy (voice) | 22 |
 Ed Bishop | Cast | Actor | Asmodeus (voice) (uncredited) | 1 |
 George Takei | Cast | Actor | Hikaru Sulu (voice) | 22 |
 James Doohan | Cast | Actor | Montgomery Scott (voice) | 22 |
 Leonard Nimoy | Cast | Actor | Spock (voice) | 22 |
Lou Scheimer | Cast | Actor | Lemus / Aquan Harvester (voice) (uncredited) | 1 |
 Majel Barrett | Cast | Actress | Christine Chapel / Starfleet Computer (voice) | 22 |
 Mark Lenard | Cast | Actor | Sarek (voice) (uncredited) | 1 |
 Nichelle Nichols | Cast | Actress | Uhura (voice) | 22 |
Norm Prescott | Cast | Actor | Orion lieutenant / Orion ensign (voice) (uncredited) | 1 |
 Roger C. Carmel | Cast | Actor | Harcourt Fenton Mudd (voice) (uncredited) | 1 |
 Stanley Adams | Cast | Actor | Cyrano Jones (voice) (uncredited) | 1 |
 Ted Knight | Cast | Actor | Vendorian / Carter Winston (voice) (uncredited) | 1 |
 William Shatner | Cast | Actor | James T. Kirk (voice) | 22 |
Jane Webb | Cast | Lara / Vedala Female (voice) (uncredited) | 1 | |
Billy Simpson | Cast | Young Spock (voice) (uncredited) | 1 | |
Keith Sutherland | Cast | Young Sepek (voice) (uncredited) | 1 | |
| Person | Type | Job | Role(s) | Episodes |
