Brian Keith as Geoff Smith

Elizabeth Ashley as Ellie Smith

Kenneth Mars as Dr. Julius Roth

William Windom as Stan Petryk

Pat Carroll as Gloria Petryk

Avery Schreiber as Roberto Gazzari

Rosey Grier as Maxie Hill

Juliet Prowse as Martha Foster

Ann Morgan Guilbert as Charlene

Mark Savage as Jimmy Smith

Ned Wertimer as Charley Whitehead

Emily Yancy as Stella Hill

Vernon Weddle as Lester Fern

Frank Parker as Hardin

Robert Nichols as Dr. Strick

Oliver Dunbar as Dr. Willard