Alfonso Gomez-Rejon Director Benedict Cumberbatch Thomas Edison Actor, Executive Producer Michael Shannon George Westinghouse Actor Nicholas Hoult Nikola Tesla Actor Katherine Waterston Marguerite Erskine Actor Tuppence Middleton Mary Edison Actor Tom Holland Samuel Insull Actor Matthew Macfadyen J.P. Morgan Actor Conor MacNeill William Kemmler Actor Tom Fisher Southwick Brown Actor Michael Mitnick Screenwriter, Executive Producer Timur Bekmambetov Producer Basil Iwanyk Producer Adam Ackland Executive Producer David Glasser Executive Producer Bob Weinstein Executive Producer Garrett Basch Executive Producer Steven Zaillian Executive Producer Martin Scorsese Executive Producer Ann Ruark Executive Producer Chung Chung-hoon Cinematographer David Trachtenberg Film Editing Dustin O'Halloran Original Music Volker Bertelmann Original Music Jan Roelfs Production Design Michael Wilkinson Costume Design Ellen Lewis Casting Theo Park Casting