Walter Matthau

Jack Martin

Carol Grace

Carol Logan

Bruce MacFarlane

Earl J. Dawson

Garry Walberg

Adolph

Raikin Ben-Ari

"Plumber"

David Leonard

W. Palmer

John Albright

Henchman

Clegg Hoyt

Caretaker at Country Club

Leonard Bremen

FBI Agent (uncredited)

Vic Tayback

Norm (uncredited)