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