Benedict Cumberbatch

Thomas Edison

Michael Shannon

George Westinghouse

Nicholas Hoult

Nikola Tesla

Katherine Waterston

Marguerite Westinghouse

Tom Holland

Samuel Insull

Matthew Macfadyen

J.P. Morgan

Tuppence Middleton

Mary Edison

Stanley Townsend

Franklin Pope

Damien Molony

Bourke Cockran

Conor MacNeill

William Kemmler

Celyn Jones

Sherman Quincy

Craig Roberts

Robert Lane

Harry Melling

Benjamin Vale

Colin Stinton

Daniel Burnham

Oliver Powell

Leo

John Schwab

Rudolph Young

Tom Bell

Reverend Vincent

Tom Sweet

Boy

Iain McKee

Reporter

Jason Matthewson

Stock Broker

Woody Norman

Dash Edison

Louis Ashbourne Serkis

Older Dash

Faye Ormston

Party Guest

Phil Hodges

City Gent

Ekow Quartey

Journalist 1

Adam Lazarus

Wabco Worker

Simon Connolly

Sioux City

Joseph Balderrama

Horace Kaden

Martyn Mayger

Lawyer

Toby Williams

Fort Worth Investment Banker

Tim Steed

Maurice Manesburg

Christopher McMullen

New York Stockbroker

Liza Ross

Beti

James Chalmers

South Dakota Delegate

Nancy Crane

Gladys

Will Irvine

Reporter 1

Adam Pearce

New Orleans Investment Banker

Sophia Ally

Dotty Edison

Kevin Millington

Henry Walsh

Greg Haiste

South Dakota Delegate

Katy Poulter

Hannah

Jed Aukin

Westinghouse Secretary

John Kinory

Scientist

Thor Janke

Policeman

Andrew Okello

Footman

Pamela Betsy Cooper

Hotel Guest (uncredited)

Simon Manyonda

Lewis Latimer

John Pierce Jones

President Glover Cleveland

Nigel Whitmey

Doctor Grandoff

Benjamin Schnau

George Westinghouse's Secretary (uncredited)