Burt Lancaster as Ned Merrill

Janet Landgard as Julie Ann Hooper

Janice Rule as Shirley Abbott

Tony Bickley as Donald Westerhazy

Marge Champion as Peggy Forsburgh

Nancy Cushman as Mrs. Halloran

Bill Fiore as Howie Hunsacker

Rose Gregorio as Sylvia Finney

David Garfield as Ticket Seller

Kim Hunter as Betty Graham

Charles Drake as Howard Graham

Bernie Hamilton as Chauffeur

House Jameson as Mr. Halloran

Jimmy Joyce as Jack Finney

Michael Kearney as Kevin Gilmartin

Richard McMurray as Stu Forsburgh

Jan Miner as Lillian Hunsacker

Diana Muldaur as Cynthia

Keri Oleson as Vernon

Joan Rivers as Joan

Cornelia Otis Skinner as Mrs. Hammar

Dolph Sweet as Henry Biswanger

Louise Troy as Grace Biswanger

Diana Van der Vlis as Helen Westerhazy

Philip Bruns as Biswangers' Pool Party Guest (uncredited)

Alva Celauro as Muffie (uncredited)

John Cheever as Man at Pool Party (uncredited)

Lisa Daniels as Matron at the Biswangers' Pool (uncredited)

Hugh Franklin as Denny (uncredited)

John Gerstad as Bunkers' Pool Party Guest (uncredited)

Dennis McMullen as Lifeguard (uncredited)

Eleanor Perry as Woman at Pool Party (uncredited)

Frank Perry as Man at Pool Party (uncredited)

Marilyn Langner as Enid Bunker (uncredited)

Ray Mason as Bunkers' Pool Party Guest (uncredited)