Various notable interviewees reminisce about San Francisco's comedy scene, which Robin Williams frequented in his early career.
| Name | Type | Role | |
|---|---|---|---|
| Lewis Black | Guest Star | Himself | |
| Zak Williams | Guest Star | Himself | |
| Paula Poundstone | Guest Star | Herself | |
| Eric Idle | Guest Star | Himself | |
| David Steinberg | Guest Star | Himself | |
| Steve Martin | Guest Star | Himself | |
| Pam Dawber | Guest Star | Herself | |
| Robin Williams | Actor | Himself (archival footage) |