Michael Keaton Frank Logan Director, Actor Kelly Macdonald Kate Frazier Actor Tom Bastounes Murcheson Actor, Producer Bobby Cannavale Michael Actor Darlene Hunt Diane Actor Philip Earl Johnson Mr. Haag Actor Guy Van Swearingen Billy Goldman Actor Larry Neumann Jr. Lester Actor William Dick Mr. Weiss Actor Greg Mills Steve Actor Michael J. Bradecich Jerry Actor Ron Lazzeretti Screenwriter, Producer Steven A. Jones Producer Paul J. Duggan Executive Producer Howard E. Smith Film Editing Grant Myers Film Editing Chris Seager Cinematographer Jennifer Dehghan Production Design Susan Kaufmann Costume Design Ed Shearmur Original Music Rachel Tenner Casting Mickie Pascal Casting Bryan M. Rapey Set Decoration