Sam Bottoms as Greg Oliver

Susanne Reed as Rachel McNamara

Virgil Frye as Earl Sullivan

Kedric Wolfe as Oscar Forbes

Charles Howerton as Dr. David Whiting

Denise Hayes as Iris Lee

Chuck Doherty as Ed Bennett

Helen McNeely as Louellen Bennett

Ken Metcalfe as Mr. Holland

Randy Taylor as Jimmy

Dave D'Martyn as Tourist #1

Clem Persons as Maintenance Man (as Clem Parsons)

Peter Cooper as Nieberg

Katherine Scholy as Darleen

Ken Petruic as Harry

Bobby Greenwood as Tourist #2

R. Lee Ermey as Arnold (uncredited)