A short retrospective from various notable interviewees, and their first impressions of Robin Williams during his early career.
| Name | Type | Role | |
|---|---|---|---|
| Billy Crystal | Guest Star | Himself | |
| Paula Poundstone | Guest Star | Herself | |
| Steve Martin | Guest Star | Himself | |
| Lewis Black | Guest Star | Himself | |
| Jay Leno | Guest Star | Himself | |
| Martin Short | Guest Star | Himself | |
| Elayne Boosler | Guest Star | Herself | |
| Pam Dawber | Guest Star | Herself | |
| Robin Williams | Actor | Himself (archival footage) | |
| Richard Belzer | Actor | Himself (archival footage) | |
| John Ritter | Actor | Himself (archival footage) | |
| Richard Lewis | Actor | Himself (archival footage) |