Gene Barry

Dr. Frank Addison

Lydia Clarke

Martha Addison

Michael Moore

Russ Farley

Nancy Gates

Ellen Haskell

Lee Aaker

Tommy Addison

Milburn Stone

Insp. Harold Mann

Bert Freed

Emil Jablons

Frank Cady

F.B.I. Agent George Weinberg

Houseley Stevenson Jr.

'Greg' Gregson