Angie McClaine hires Barnaby to find her husband, who has disappeared and in reality is a marriage impostor that takes the identities of successful men. He marries rich Vanessa and poses as a doctor. Two people who try to unmask him are killed.
| Name | Type | Role | |
|---|---|---|---|
| Gerald Sanford | Writer | ||
| Teri Garr | Guest Star | ||
| Patricia McCormack | Guest Star | ||
| Kate Hawley | Guest Star | ||
| Quinn Redeker | Guest Star | ||
| Joel Fabiani | Guest Star | ||
| Bradford Dillman | Guest Star | ||
| Claudette Nevins | Guest Star | ||
| John Zaremba | Guest Star | ||
| William Sargent | Guest Star | ||
| Dean Santoro | Guest Star | ||
| Mariette Hartley | Guest Star | ||
| William Hale | Director |