Arthur Hiller Director Ali MacGraw Jennifer Cavalleri Actor Ryan O'Neal Oliver Barrett IV Actor Ray Milland Oliver Barrett III Actor Katharine Balfour Mrs. Barrett Actor John Marley Phil Cavalleri Actor Russell Nype Dean Thompson Actor Sydney Walker Dr. Shapely Actor Robert Modica Dr. Addison Actor Walker Daniels Ray Stratton Actor Tommy Lee Jones Hank Simpson Actor John Merensky Steve Actor Andrew Duncan Reverend Blauvelt Actor Erich Segal Screenwriter Howard G. Minsky Producer David Golden Executive Producer Richard C. Kratina Cinematographer Robert C. Jones Film Editing Francis Lai Original Music Robert Gundlach Art Director Philip Smith Set Decoration Pearl Somner Costume Design Alice Manougian Martin Costume Design, Casting