Solo and Illya devise a clever scheme to discredit a Balkan intelligence chief (Werner Klemperer) with a bogus secret gas. With the help of a bankrupt exterminator (William Shatner) and his wife, Illya poses as a fellow countryman and exploits the paranoia of the chief and his bumbling assistant (Leonard Nimoy).
| Name | Type | Role | |
|---|---|---|---|
| Henry Misrock | Writer | ||
| Woodrow Parfrey | Guest Star | ||
| Will J. White | Guest Star | ||
| William Shatner | Guest Star | Michael Donfield | |
| Narda Onyx | Guest Star | ||
| Peggy Ann Garner | Guest Star | Anne Donfield | |
| Susanne Cramer | Guest Star | ||
| Werner Klemperer | Guest Star | Laslo Kurasov | |
| Sheila MacRae | Guest Star | ||
| Leonard Nimoy | Guest Star | Vladeck | |
| Joseph Sargent | Director |