斯宾塞·屈塞
Spencer Tracy
饰：Thomas A. Edison
丽塔·约翰森
Rita Johnson
饰：Mary Stilwell
林恩·奥弗曼
Lynne Overman
饰：Bunt Cavatt
查尔斯·科本
Charles Coburn
饰：General Powell
吉恩·洛克哈特
Gene Lockhart
饰：Mr. Taggart
亨利·特拉维斯
Henry Travers
饰：Ben Els
菲利克斯·布雷萨特
Felix Bressart
饰：Michael Simon
彼得·戈弗雷
Peter Godfrey
饰：Ashton
Guy D'Ennery
饰：Lundstrom
拜伦·弗格
Byron Foulger
饰：Edwin Hall
Milton Parsons
饰：'Acid' Graham
亚瑟·埃尔斯沃斯
Arthur Aylesworth
饰：Bigelow
吉恩·雷诺兹
Gene Reynolds
饰：Jimmy Price
艾迪生·理查兹
Addison Richards
饰：Mr. Johnson
格兰特·米切尔
Grant Mitchell
饰：Snade
保罗·赫斯特
Paul Hurst
饰：Sheriff
乔治·莱西
George Lessey
饰：Toastmaster
Jay Ward
饰：John Schofield
安·吉利斯
Ann Gillis
饰：Nancy Gray
埃尔维利·阿尔德森
Erville Alderson
饰：First Lecturer (uncredited)
Billy Arnold
饰：Minor Role (uncredited)
Hooper Atchley
饰：Broker (uncredited)
欧文·培根
Irving Bacon
饰：Sheriff (uncredited)
Arthur Belasco
饰：Broker (uncredited)
比利·布莱彻
Billy Bletcher
饰：Reporter (uncredited)
Harry C. Bradley
饰：Preacher (uncredited)
Harlan Briggs
饰：Bisbee (uncredited)
Fritzi Brunette
饰：Minor Role (uncredited)
约翰·巴特勒
John Butler
饰：Mechanic (uncredited)
乔治·钱德勒
George Chandler
饰：Gold Exchange Clerk (uncredited)
Howard Chase
饰：Minor Role (uncredited)
Jimmy Conlin
饰：Waiter (uncredited)
Nick Copeland
饰：Reporter (uncredited)
莫里斯·科斯特罗
Maurice Costello
饰：Broker (uncredited)
Nell Craig
饰：Woman (uncredited)
Jack Daley
饰：Minor Role (uncredited)
Edgar Dearing
饰：Policeman (uncredited)
海伦·迪克森
Helen Dickson
饰：Minor Role (uncredited)
约翰·迪尔森
John Dilson
饰：Broker (uncredited)
唐纳德·道格拉斯
Donald Douglas
饰：Jordan (uncredited)
Edward Earle
饰：Broker (uncredited)
弗兰克·费伦
Frank Faylen
饰：Galbreath (uncredited)
埃迪·格里本
Eddie Gribbon
饰：Cashier (uncredited)
黑尔·汉密尔顿
Hale Hamilton
饰：Broker (uncredited)
Edward Hearn
饰：Broker (uncredited)
Arthur Stuart Hull
饰：Broker (uncredited)
Harry Humphrey
饰：Broker (uncredited)
爱德华·基恩
Edward Keane
饰：Lecturer (uncredited)
Milton Kibbee
饰：Workman (uncredited)
查尔斯·莱恩
Charles Lane
饰：Second Lecturer (uncredited)
爱德华·勒桑
Edward LeSaint
饰：Doctor (uncredited)
威尔弗雷德·卢卡斯
Wilfred Lucas
饰：Broker (uncredited)
Tom Mahoney
饰：Policeman (uncredited)
Ralph McCullough
饰：Reporter (uncredited)
George Meader
饰：Minister (uncredited)
Harold Minjir
饰：Blair (uncredited)
布鲁斯·米切尔
Bruce Mitchell
饰：Coachman (uncredited)
Forbes Murray
Forbes Murray
饰：Broker (uncredited)
路易·纳托
Louis Natheaux
饰：Broker (uncredited)
George Ovey
饰：Lamplighter (uncredited)
Thomas Pogue
饰：Minor Role (uncredited)
Alexander Pollard
饰：Butler (uncredited)
西里尔·环
Cyril Ring
饰：Reporter (uncredited)
Harry Strang
饰：Minor Role (uncredited)
Jackie Taylor
饰：Minor Role (uncredited)
查尔斯·特罗布里奇
Charles Trowbridge
饰：Clark (uncredited)
Emmett Vogan
饰：Secretary (uncredited)
查尔斯·沃尔德伦
Charles Waldron
饰：First Commissioner (uncredited)
Frank Whitbeck
饰：Trailer Narrator (uncredited)
Joe Whitehead
饰：Minor Role (uncredited)
Lloyd Whitlock
饰：Broker (uncredited)
罗伯特·温克勒
Robert Winkler
饰：Newsboy (uncredited)
Walter Fenner
饰：Man at Banquet (uncredited)
Eve Kendall
Eve Kendall
饰：Marion Estelle Edison (uncredited)
Frank Whitbeck
William Arnold