| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Alan Caillou | Crew | Writing | Writer | 1 |
Barry Crane | Crew | Directing | Director | 1 |
Dann Cahn | Crew | Directing | Director | 1 |
David H. Balkan | Crew | Writing | Story | 1 |
David Moessinger | Crew | Directing | Director | 2 |
Dennis Donnelly | Crew | Directing | Director | 1 |
Edward M. Abroms | Crew | Directing | Director | 1 |
Harry Harris | Crew | Directing | Director | 1 |
Herman Miller | Crew | Writing | Writer | 2 |
Michael I. Wagner | Crew | Writing | Writer | 2 |
 Michael O'Herlihy | Crew | Directing | Director | 1 |
Peter Allan Fields | Crew | Writing | Writer | 1 |
 Richard Benedict | Crew | Directing | Director | 1 |
 Robert Douglas | Crew | Directing | Director | 1 |
Shimon Wincelberg | Crew | Writing | Writer | 1 |
 Stephen Kandel | Crew | Writing | Writer | 2 |
Tom Greene | Crew | Writing | Writer | 1 |
 Virgil W. Vogel | Crew | Directing | Director | 2 |
 Herbert F. Solow | Crew | Production | Producer | 13 |
Paul Krasny | Crew | Directing | Director | 1 |
Larry Alexander | Crew | Writing | Writer | 2 |
Mayo Simon | Crew | Creator | Creator | |
Larry Alexander | Crew | Writing | Writer | 1 |
 Ahna Capri | Cast | Actress | Louisa | 1 |
 Alan Fudge | Cast | Actor | Dr. Crawford | 13 |
Anson Downes | Cast | Actor | Cetacean crew | 6 |
 Anthony James | Cast | Actor | Summersday | 1 |
 Arlene Martel | Cast | Actress | Carla(as Tasha Martell) | 1 |
 Belinda Montgomery | Cast | Actress | Dr. Elizabeth Merrill | 13 |
 Billy Barty | Cast | Actor | Moxie | 1 |
 Carole Mallory | Cast | Actress | Vicki | 1 |
 Dee Wallace | Cast | Actress | Hot Dog Stand Owner (as Dee Wallace-Stone) | 1 |
 Richard Gautier | Cast | Actor | Duke (as Dick Gautier) | 1 |
 Gary Owens | Cast | Actor | Blaise Mullen | 1 |
 Harvey Jason | Cast | Actor | Dashki | 1 |
 Jamie Smith-Jackson | Cast | Actress | Bettina Washburn (as Jamie Smith Jackson) | 1 |
 Jean Marie Hon | Cast | Actress | Cetacean crew | 9 |
 John Shea | Cast | Actor | Romeo | 1 |
 Kareem Abdul-Jabbar | Cast | Actor | Thark | 1 |
Larry Breeding | Cast | Buddy O'Toole | 1 | |
 Laurette Spang | Cast | Actress | Amanda Trevanian | 1 |
 Lisa Eilbacher | Cast | Actress | Juliet | 1 |
 Lyman Ward | Cast | Actor | Clavius | 1 |
Mel Scott | Cast | Actor | Bert Davis | 1 |
 Michael Strong | Cast | Actor | Hugh Trevanian | 1 |
 Michele Carey | Cast | Actress | Belle | 1 |
 Neville Brand | Cast | Actor | Stringer | 1 |
 Noble Willingham | Cast | Actor | Artemus Washburn | 1 |
 Pat Morita | Cast | Actor | Moby | 1 |
 Patrick Duffy | Cast | Actor | Mark Harris | 13 |
 Pernell Roberts | Cast | Actor | Clint Hollister | 1 |
 René Auberjonois | Cast | Actor | Havergal | 1 |
Robert Lussier | Cast | Actor | Brent | 13 |
Scott Porter | Cast | Mercutio | 1 | |
 Sharon Farrell | Cast | Actress | Charlene Baker | 1 |
 Sydney Lassick | Cast | Actor | 1 | |
 Ted Cassidy | Cast | Actor | Canja | 1 |
 Ted Neeley | Cast | Actor | Jack Muldoon | 2 |
 Timothy Scott | Cast | Actor | Caine | 1 |
 Val Avery | Cast | Actor | Lew | 1 |
 Victor Buono | Cast | Actor | Mr. Schubert | 5 |
 Lisa Blake Richards | Cast | Actress | Jenny Reynolds (as Lisa Richards) | 1 |
J. Víctor López | Cast | Actor | Cetacean crew (as Victor Lopez) | 1 |
 Donna Garrett | Cast | Actress | Student | 1 |
Victoria Huxtable | Cast | Juliette Schubert (as Vicky Huxtable) | 1 | |
| Person | Type | Job | Role(s) | Episodes |
