| Show | What If? |
| Michael Palin | ... | Adolf Hitler |
| Dan Aykroyd | ... | Klaus Kent |
| John Belushi | ... | Jor-El |
| Jane Curtin | ... | Joan Face |
| Jim Downey | ... | guard |
| Al Franken | ... | Jimmy Olsteyn |
| Garrett Morris | ... | Kevin Temple |
| Bill Murray | ... | Mr. Kent |
| Laraine Newman | ... | Lois Lane-Off |
| Nils Nichols | ... | guard |
| Gilda Radner | ... | Eileen Houton |
| Gilda Radner | ... | Frau Guston, secretary Voice |
| Andy Murphy | ... | officer |