In Yugoslavia, Solo and Illya are aided by Marion Raven (Jill Ireland) in stopping Gervaise Ravel (Anne Francis) and her partners from using a fear gas to overthrow various governments. While two of them are captured, two of them escape, and the story continues in "The Giuoco Piano Affair"
| Name | Type | Role | |
|---|---|---|---|
| Alan Caillou | Writer | ||
| Sherwood Keith | Guest Star | ||
| Robert Carricart | Guest Star | ||
| John Garwood | Guest Star | ||
| John van Dreelen | Guest Star | ||
| Jan Barthel | Guest Star | ||
| Richard Anderson | Guest Star | ||
| John Richard | Guest Star | ||
| Jill Ireland | Guest Star | ||
| Jay Della | Guest Star | ||
| Stuart Nisbet | Guest Star | ||
| Anne Francis | Guest Star | ||
| Roger C. Carmel | Guest Star | ||
| Richard Donner | Director |