Bruce Willis (Tom Mix), Dermot Mulroney (Michael Alperin), Mariel Hemingway (Cheryl King), James Garner (Wyatt Earp), Kathleen Quinlan (Nancy Shoemaker), Jennifer Edwards (Victoria Alperin), M. Emmet Walsh (Marvin Dibner), Malcolm McDowell (Alfie Alperin), Jeris Poindexter (Cleaning Man), Patricia Hodge (Christina Alperin), Richard Bradford (Captain Blackwood), Joe Dallesandro (Dutch Kieffer), Andreas Katsulas (Arthur), Dann Florek (Marty Goldberg), Bill Marcus (Hal Flynn), Michael C. Gwynne (Mooch), Miranda Garrison (Spanish Dancer), Liz Torres (Rosa), Castulo Guerra (Pancho), Dakin Matthews (William Singer), Vernon Wells (Australian Houseman), Dennis Rucker (Paul), John Dennis Johnston (Ed), Kenny Call (Cowboy Fred), Jack Garner (Cowboy Henry), Jerry Tullos (Leo Vogel), Herb Tanney (George the Conductor), Peter Jason (Frank Coe), Richard Fancy (Academy Speaker), Glenn Shadix (Roscoe Arbuckle), Lisa Alpert (Michael's Secretary), Sonia Zimmer (Dibner's Secretary), Marina Palmier (Candy Store Girl), Tessa Taylor (Candy Store Girl), Jon van Ness (Director), P. Randall Bowers (Assistant Director), Maureen Teefy (Stagecoach Lady), Arnold Johnson (George), Eric Harrison (Alperin Butler), Amy Michelson (Alfie's 1st Wife), James O'Connell (Gate Guard), Ken Call ()