Jason Robards as John Gwilt

Sandy Dennis as Jane Gwilt

Jean Simmons as Estelle Benbow

Robert Easton as Fred Staines

Mark Miller as Rev. Fletcher

Brenda Smith as Daisy Staines

Ian Wolfe as Abner / Arnie

Richard Bull as Dr. Fernfield

David Osterhout as Officer Kelly

Lou Picetti as Humphry

Jerome Thor as Higgins

Curtis Taylor as Harry

Paul Berini as Milkman

Eddie Lewis as Milkman

Sydna Scott as Clubwoman

Richard Redd as Attendant

Ron D'Ippolito as Attendant

Darby Hinton as Frank

Hall Brock as Albert

Tawna Nugent as Albert's Sister

Janine Johnson as Piano Student

Walter Scott as Truck Driver

Lance Cremer as News Boy

Evert Smith as Officer

Don Specter as Workman

Wayne Smith as Workman