Walter Matthau
Jack Martin
Garry Walberg
Adolph
Clegg Hoyt
Caretaker at Country Club
Leonard Bremen
FBI Agent (uncredited)
Vic Tayback
Norm (uncredited)
Carol Grace
Carol Logan
Bruce MacFarlane
Earl J. Dawson
Raikin Ben-Ari
"Plumber"
David Leonard
W. Palmer
John Albright
Henchman