Tony Randall

Prof. Daniel Potter

Shirley Jones

Janice Claridge

Edward Andrews

Griswald

Howard Morris

Sweeney

Ernest Truex

Claridge

Jim Backus

Sergeant

Frank Faylen

Catfish

Celia Milius

Sally Brighton

Dick Sargent

Tommy

Adam Roarke

Bob Brighton

Whit Bissell

Dr. Braden

Jim Boles

Pete

Parley Baer

Police Captain

Connie Gilchrist

Maid

Kathleen Mulqueen

Elderly Lady

Orangey

Cat (uncredited)