Robin Williams' stand-up set excerpted from the celebration of the 20th "birthday" of the famous Improv comedy club.
| Name | Type | Role | |
|---|---|---|---|
| Billy Crystal | Writer | ||
| Phil Kellard | Writer | ||
| Robin Williams | Writer | ||
| Rocco Urbisci | Producer | ||
| Jeff Margolis | Producer | ||
| Robert Klein | Host | Himself / Host | |
| Billy Crystal | Guest Star | Himself | |
| Budd Friedman | Executive Producer | ||
| Jeff Margolis | Director | ||
| Ellen Brown | Director | ||
| Robin Williams | Actor | Himself |