Don Ameche
Alexander Graham Bell
Loretta Young
Mrs. Mabel Hubbard Bell
Henry Fonda
Thomas Watson
Charles Coburn
Gardner Hubbard
Gene Lockhart
Thomas Sanders
Spring Byington
Mrs. Hubbard
Sally Blane
Gertrude Hubbard
Polly Ann Young
Grace Hubbard
Georgiana Young
Berta Hubbard
Bobs Watson
George Sanders
Russell Hicks
Mr. Barrows
Paul Stanton
Chauncey Smith
Jonathan Hale
President of Western Union
Harry Davenport
Judge Rider
Beryl Mercer
Queen Victoria
Elizabeth Patterson
Mrs. MacGregor
Charles Trowbridge
George Pollard
Jan Duggan
Mrs. Winthrop
Claire Du Brey
Landlady
Harry Tyler
Joe Eliot
Ralph Remley
D'Arcy - Singer
Zeffie Tilbury
Mrs. Sanders
Jack Kelly
Banker's Son (uncredited)
Esther Brodelet
Telephone Operator
Tyler Brooke
Mr. Calhoun
Nora Cecil
Miss Jenkins
Davison Clark
Court Attendant at Door
Dick Elliott
Man Laughing at Demo
Edmund Elton
Banker at Demo
Fern Emmett
Mac Gregor's Maid
Mary Field
Piano Player
George Guhl
Mr. Winthrop
Otto Hoffman
Pawnbroker
Warren Jackson
Tom
Frank Jaquet
Edward
Sheldon Jett
New England Telephone Company Executive
Edward Keane
Banker at Demo
Crauford Kent
General
Edward LeSaint
Banker at Demonstration
Jarold Clifford Lyons
Infant
Dave Morris
Telegrapher
Ottola Nesmith
Nora
Ruth Robinson
Nurse
John Graham Spacey
Sir John Cowell
Landers Stevens
Manager of New England Telephone Exchange
Charles Tannen
Court Clerk
Eddy Waller
Storekeeper
Jack Walsh
James J. Starrow
Lillian West
Sanders' Nurse
John Elliott
Banker at Demo