Martin Short, Eugene Levy, Gilda Radner, Victor Garber, Paul Shaffer, and other entertainment icons got their start in a 1972 Toronto production of the musical Godspell. Featuring interviews with the surviving cast members, Lin-Manuel Miranda, Mike Myers, and more, the film recounts a pivotal moment in comedy history, in hilarious, moving, and inspiring detail. Executive produced by Judd Apatow.
| Actor | Role |
|---|---|
 Martin ShortSelf / Jeffrey | Self / Jeffrey |
 Eugene LevySelf / Herb / Jesus | Self / Herb / Jesus |
 Victor GarberSelf / Jesus | Self / Jesus |
 Andrea MartinSelf / Robin | Self / Robin |
 Jayne EastwoodSelf / Sonia | Self / Sonia |
 Valda AviksSelf / Peggy | Self / Peggy |
| AAvril ChownSelf / Joanne | Self / Joanne |
 Rudy WebbSelf / Lamar | Self / Lamar |
 Paul ShafferSelf | Self |
 Stephen SchwartzSelf | Self |
 Dave ThomasSelf | Self |
 Don ScardinoSelf | Self |
 Gilda RadnerSelf (archive footage) | Self (archive footage) |
| GGerry SalsbergSelf (archive footage) | Self (archive footage) |
 Mike MyersSelf | Self |
 Lin-Manuel MirandaSelf | Self |
 Heidi GardnerSelf | Self |
 James Austin JohnsonSelf | Self |
 Janeane GarofaloSelf | Self |
 Gary GulmanSelf | Self |
 Catherine O'HaraSelf (archive footage) | Self (archive footage) |
 John CandySelf (archive footage) | Self (archive footage) |
 Harold RamisSelf (archive footage) | Self (archive footage) |
 Dan AykroydSelf | Self |
 Valri BromfieldSelf | Self |