The singing sisters Ruby and Pearl Connors from the episode ""Duet for Dying"" join a prison escape and seek Lester Gibson's help to travel to Nashville. His bride Mary Beth asks Barnaby to find Lester. When Ruby and Pearl try to cheat club owner De Marco he forces them to distract gambler Kingston. Eventually Barnaby and J.R. must come to the rescue of Lester and the duo.
| Name | Type | Role | |
|---|---|---|---|
| Gerald Sanford | Writer | ||
| Clark Howat | Guest Star | ||
| Cassie Yates | Guest Star | ||
| Paul Picerni | Guest Star | ||
| Tony Ballen | Guest Star | ||
| Mary Ann Chinn | Guest Star | ||
| Ray Danton | Guest Star | ||
| Andy Jarrell | Guest Star | ||
| Lou Tiano | Guest Star | ||
| Buddy Pantsari | Guest Star | ||
| Quinn Redeker | Guest Star | ||
| Barbara Mallory | Guest Star | ||
| Mark Thomas | Guest Star | ||
| Bryan Montgomery | Guest Star | ||
| Gloria Manon | Guest Star | ||
| Leslie H. Martinson | Director |