| Sketch |
| Margot Kidder | ... | Mary Margaret Muggy |
| Dan Aykroyd | ... | Jack Neehauser |
| John Belushi | ... | Frank Leary |
| Jane Curtin | ... | cook |
| Jim Downey | ... | knight |
| Garrett Morris | ... | Lee Leslie Davis |
| Bill Murray | ... | Francis Jocko Leary Jr. |
| Laraine Newman | ... | Sister Serena |
| Gilda Radner | ... | cook |
| Alan Zweibel | ... | knight |
| Lee Mayman | ... | knight |
| Brian McConnachie | ... | Phil Burke |
| Nils Nichols | ... | knight |
| Karen Roston | ... | guest |
| Liz Welch | ... | guest |
| Andy Murphy | ... | Tommy O'Boyle |