Mary Tyler Moore treats Late Show viewers to a video clip of Dave from her 1978 variety show, "Mary," in which she smashes a grapefruit in Dave's face. Also, Dave, Biff, Gaines, Anton and Laurie Diamond get their teeth cleaned.
| Name | Type | Role | |
|---|---|---|---|
| Dian Parkinson | Guest Star | ||
| Jackson Browne | Guest Star | ||
| Rita Rudner | Guest Star | ||
| Mary Tyler Moore | Guest Star | ||
| Hal Gurnee | Director |