Stayley Kircher, a warehouse owner, hires Barnaby to find out who tried to kill him. Barnaby poses as long lost brother Harry Kircher with Betty as his Girl Friday. They discover that several employees of unwitting Stayley are involved in a munition contraband.
| Name | Type | Role | |
|---|---|---|---|
| Robert W. Lenski | Writer | ||
| Mark Thomas | Guest Star | ||
| Joseph Chapman | Guest Star | ||
| Nina Foch | Guest Star | ||
| Kurt Grayson | Guest Star | ||
| Denver Pyle | Guest Star | ||
| Jill Martin | Guest Star | ||
| Walker Edmiston | Guest Star | ||
| Marge Redmond | Guest Star | ||
| Sandra De Bruin | Guest Star | ||
| Beeson Carroll | Guest Star | ||
| John Milford | Guest Star | ||
| Jim Gruzalski | Guest Star | ||
| Laura Hippe | Guest Star | ||
| Alf Kjellin | Director |