| Name | Character | Episodes |
|---|---|---|
| Charles Rocket | Victor Beaudine | 13 |
| George Segal | Daedalus Patrick Murphy | 13 |
| Josh Mostel | Wes Harden | 13 |
| Maggie Han | Kimiko (Kimy) Fannuchi | 13 |
| Julia Sweeney | 2 | |
| Bruce Gray | 2 | |
| Jeffrey Byron | 1 | |
| Ronnie Claire Edwards | 1 | |
| John Standing | 1 | |
| Reni Santoni | 1 | |
| Joan Severance | 1 | |
| Will Estes | 1 | |
| Garwin Sanford | 1 | |
| Patrick Macnee | 1 | |
| Valerie Mahaffey | 1 | |
| Judy Landers | 1 | |
| Carolyn Seymour | 1 | |
| Gerard Christopher | 1 | |
| Jack Bannon | 1 | |
| Jennifer Hetrick | 1 | |
| Diana Bellamy | 1 | |
| Marvin Kaplan | 1 | |
| Ric Reid | 1 |