Thomas Edison
George Westinghouse
Nikola Tesla
Marguerite Westinghouse
Samuel Insull
J.P. Morgan
Mary Edison
Franklin Pope
Bourke Cockran
William Kemmler
Sherman Quincy
Robert Lane
Benjamin Vale
Daniel Burnham
Leo
Rudolph Young
Emily Faulk
Reverend Vincent
Boy
Reporter
Stock Broker
Dash Edison
Older Dash
Party Guest
City Gent
Journalist 1
Wabco Worker
Sioux City
Horace Kaden
NYSE member
Lawyer
Fort Worth Investment Banker
Maurice Manesburg
New York Stockbroker
Mr. Westinghouse's Secretary
Beti
Cinema Goer
South Dakota Delegate
Gladys
Reporter 1
New Orleans Investment Banker
Dotty Edison
Henry Walsh
Francis Upton
South Dakota Delegate
Hannah
Westinghouse Secretary
Scientist
Stock Enchange Gent
City Gent
WABCO Worker
J.P. Morgan Lawyer
Wabco Worker
Policeman
Footman
Frederick Worthington
Hotel Guest (uncredited)
Lewis Latimer
President Glover Cleveland
Doctor Grandoff
George Westinghouse's Secretary (uncredited)