| Name | Character | Episodes |
|---|---|---|
| William Shatner | 2 | |
| James Earl Jones | 1 | |
| Burgess Meredith | Narrator (voice) | 1 |
| Jerry Stiller | Candide | 1 |
| Jerry Stiller | 1 | |
| Fredric March | Albert Schweitzer (voice) | 1 |
| Jimmy Carter | Self | 1 |
| Reni Santoni | Youth | 1 |
| Herb Voland | 1 | |
| Malachi Throne | Hazgerd II | 1 |
| Joel Crothers | Vardan | 1 |