All Cast
Spencer Tracy
Thomas A. Edison
Charles Coburn
General Powell
Lynne Overman
Bunt Cavatt
Rita Johnson
Mary Stilwell
Gene Lockhart
Mr. Taggart
Henry Travers
Ben Els
Felix Bressart
Michael Simon
Peter Godfrey
Ashton
Guy D'Ennery
Lundstrom
Byron Foulger
Edwin Hall
Milton Parsons
'Acid' Graham
Arthur Aylesworth
Bigelow
Gene Reynolds
Jimmy Price
Addison Richards
Mr. Johnson
Grant Mitchell
Snade
Paul Hurst
Sheriff
George Lessey
Toastmaster
Jay Ward
John Schofield
Ann Gillis
Nancy Grey
Erville Alderson
First Lecturer
William Arnold
Minor Role
Hooper Atchley
Broker
Irving Bacon
Sheriff
Arthur Belasco
Broker
Edward Biby
Party Guest
Billy Bletcher
Reporter
Harry C. Bradley
Preacher
Harlan Briggs
Bisbee
Fritzi Brunette
Minor Role
John Butler
Mechanic
James Carlisle
Party Guest
George Chandler
Gold Exchange Clerk
Howard Chase
Minor Role
James Conaty
Party Guest
Jimmy Conlin
Waiter
Nick Copeland
Reporter
Maurice Costello
Broker
Nell Craig
Woman
Jack Daley
Minor Role
Edgar Dearing
Policeman
Helen Dickson
Minor Role
John Dilson
Broker
Donald Douglas
Jordan
Edward Earle
Broker
Frank Faylen
Galbreath
Walter Fenner
Man at Banquet
Eddie Gribbon
Cashier
Hale Hamilton
Broker
Sam Harris
Party Guest
Edward Hearn
Broker
Arthur Stuart Hull
Broker
Harry Humphrey
Broker
Edward Keane
Lecturer
Eve Kendall
Marion Estelle Edison
Milton Kibbee
Workman
Charles Lane
Second Lecturer
Edward LeSaint
Doctor
Wilfred Lucas
Broker
Tom Mahoney
Policeman
Eric Mayne
Party Guest
Ralph McCullough
Reporter
George Meader
Minister
Harold Minjir
Blair
Bruce Mitchell
Coachman
Hans Moebus
Party Guest
Edmund Mortimer
Party Guest
Forbes Murray
Broker
Louis Natheaux
Broker
Alex Novinsky
Party Guest
William H. O'Brien
Waiter
George Ovey
Lamplighter
Thomas Pogue
Minor Role
Alexander Pollard
Butler
Cyril Ring
Reporter
Count Stefenelli
Party Guest
Harry Strang
Minor Role
Charles Trowbridge
Clark
Emmett Vogan
Secretary
Charles Waldron
First Commissioner
Frank Whitbeck
Trailer Narrator (voice)
Joe Whitehead
Minor Role
Lloyd Whitlock
Broker