Robert Wagner
— Jonathan Hart
Stefanie Powers
— Jennifer Hart
Lionel Stander
— Max
Roddy McDowall
— Dr. Peterson
Jill St. John
— Sylvia Maxwell
Eugene Roche
— Business Manager
Clifton James
— Highway Cop
Michael Lerner
— Poker Player
Lee Bryant
— Dorothy Roberts
Stella Stevens
— Dr. Fleming
James Noble
— Dr. Metz
Mimi Maynard
— Secretary
David Landsberg
— Man in Sauna
Paul Napier
— Sam Roberts
Paul Tuerpe
— Bellboy
Art Kassul
— Artie
Jack Perkins
— Poker Player #1
Don Dandridge
— Poker Player #2
George Skaff
— Arab Sheik
Eugenia Wright
— Desk Clerk
Elizabeth Brooks
— Attendant #2
Tara Buckman
— Sandy
Lina Raymond
— Jane
Natalie Wood
— Movie Star
Shirley Anthony
— Farm Guest (uncredited)
Gregory J. Barnett
— Allen (uncredited)
Paul DeCeglie
— Attendant (uncredited)
Kim Genelle
— Hostess (uncredited)
Paul King
— Acupuncturist (uncredited)
Tony Regan
— Farm Guest (uncredited)