Tony Randall
Daniel Potter
Shirley Jones
Janice
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
Harriet MacGibbon
Mrs. Claridge
Jim Boles
Pete
Parley Baer
Police Captain
Connie Gilchrist
Maid
Stuart Randall
State Trooper
Sammee Tong
Cook
B
Barry O'Hara
Fireman #2
Sam Gilman
Policeman
Milton Frome
Tweedy Physicist
Doodles Weaver
Yokel
K
Kathleen Mulqueen
Elderly Lady (uncredited)