An excerpted clip of Robin Williams' stand-up comedy performance for ‘An Evening with Friends of the Environment’, a charity concert held in aid of the protecting the environment, featuring celebrity mothers Olivia Newton-John, Bette Midler, Goldie Hawn, Cher, Meryl Streep, Lily Tomlin… and Robin Williams. Filmed at the LA outdoor Greek Theater before a live audience, the celebrity cast sang "What a Wonderful World" at the concert's finale.
| Name | Type | Role | |
|---|---|---|---|
| Stephen Pouliot | Writer | ||
| Bruce Vilanch | Writer | ||
| Jane Wagner | Writer | ||
| Robin Williams | Guest Star | Himself | |
| Jeff Margolis | Executive Producer | ||
| Jeff Margolis | Director | ||
| David Steinberg | Actor | Himself (2019 Introduction) |