Andrew L. Stone Director, Producer James Mason Jim Molner Actor Rod Steiger Paul Hoplin Actor Inger Stevens Mrs. Joan Molner Actor Neville Brand Steve Actor Angie Dickinson Eileen Kelly Actor Kenneth Tobey Agent Frank Cole Actor Jack Klugman Vince Actor Jack Kruschen F.B.I. Agent Charles Pope Actor Carleton Young Roger Adams Actor Barney Phillips Dan Pringle Actor Harlan Warde Bert Actor Ed Hinton Operative Actor William Schallert Henderson Actor Portland Mason Patty's Friend on Schoolbus Actor Mae Marsh Woman in Elevator Actor Terry Ann Ross Patty Molner Actor Virginia L. Stone Producer