
| Bob Denver | ... | Gilligan (99 episodes, 1964-1967) |
 | Alan Hale Jr. | ... | Jonas 'The Skipper' Grumby (99 episodes, 1964-1967) |
 | Jim Backus | ... | Thurston Howell III (99 episodes, 1964-1967) |
 | Natalie Schafer | ... | Mrs. Lovey Howell (99 episodes, 1964-1967) |
 | Tina Louise | ... | Ginger Grant / ... (98 episodes, 1964-1967) |
 | Russell Johnson | ... | Professor Roy Hinkley / ... (98 episodes, 1964-1967) |
 | Dawn Wells | ... | Mary Ann Summers (98 episodes, 1964-1967) |
 | Charles Maxwell | ... | Radio Announcer (8 episodes, 1964-1965) |
 | Vito Scotti | ... | Dr. Boris Balinkoff / ... (4 episodes, 1965-1966) |
 | Janos Prohaska | ... | Ape (3 episodes, 1965-1967) |
 | Eddie Little Sky | ... | Native / ... (3 episodes, 1965-1966) |

| Mel Blanc | ... | Parrot / ... (2 episodes, 1964-1965) |
 | Hans Conried | ... | Wrongway Feldman (2 episodes, 1964-1965) |
 | Denny Miller | ... | Duke Williams / ... (2 episodes, 1965-1967) |
 | Russ Grieve | ... | Native / ... (2 episodes, 1965) |
 | George N. Neise | ... | NASA Official / ... (2 episodes, 1966-1967) |
 | James Spencer | ... | Copilot / ... (2 episodes, 1966-1967) |
 | Chick Hearn | ... | Commentator / ... (2 episodes, 1967) |