Jack Lemmon (Howard Brubaker)
Catherine Deneuve (Catherine Gunther)
Peter Lawford (Ted Gunther)
Jack Weston (Potter Shrader)
Myrna Loy (Grace Greenlaw)
Kenneth Mars (Les Hopkins)
Sally Kellerman (Phyllis Brubaker)
Nancy Howard (Connie Archer)
Janice Carroll (Mimsy Shrader)
David F. Doyle (Walters)
Gary Dubin (Stanley Brubaker)
Susan Barrett (Party Singer)
Dee Gardner (Secretary)
Tom Aheame (Doorman)
Charles Boyer (Andre Greenlaw)
Harvey Korman (Benson)
Melinda Dillon (Leslie Hopkins)
Kenneth Mars (Don Hopkins)