Zero Mostel interrupts Dick Cavett's monologue to give advice, Diahann Carroll discusses criticisms of her television series, "Julia," and psychiatrist Dr. David Hubbard analyzes skyjackers.
| Name | Type | Role | |
|---|---|---|---|
| Dr. David Hubbard | Guest Star | ||
| Diahann Carroll | Guest Star | ||
| Zero Mostel | Guest Star |