Mike Connors Joe Mannix Actor Gail Fisher Peggy Fair Actor Heidi Vaughn Marie Fenlon Guest Star George Voskovec Niles Guest Star Patricia Medina Mrs. Corot Guest Star Paul Mantee Frank Viola Guest Star Nicholas Cortland Gilbert Douglas Guest Star Gregory Morton Prof. Brooks Fenlon Guest Star Len Wayland Chief Wedlow Guest Star Bert Kramer Boyle Guest Star Tom Stewart Dr. Norman Wellesley Guest Star Patty Elder Barbara Guest Star Bill Burton Harker Guest Star Bob Orrison Kalish Guest Star Barry Crane Director Ed Waters Writer