| Name | Character | Episodes |
|---|---|---|
| Don Rickles | C.P.O. Otto Sharkey | 37 |
| Elizabeth Allen | Capt. Quinlan | 37 |
| Harrison Page | Chief Robinson | 37 |
| Barry Pearl | Recruit Mignone | 37 |
| Richard X. Slattery | Captain Buckner | 37 |
| Jonathan Daly | Lt. Whipple | 24 |
| Peter Isacksen | Seaman Pruitt | 22 |
| James T. Callahan | 1 | |
| Harvey Jason | 1 | |
| Jack Dodson | 1 | |
| Herb Voland | 1 |