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)