Narrator (voice)
Ludwig van Beethoven as an old man (voice)
King Charles (voice)
Young William Bradford (voice)
Talavera (voice)
Queen Isabella (voice)
Giovanni / Domineco Columbus (voice)
Charles Lee (voice)
John Carver (voice)
Michelangelo (voice)
Wilbur Wright / Parisian Husband / French Reporter (voice)
Alexander Graham Bell / Thomas Watson (voice)
Kate Keller (voice)
Herr Breuning / Aristocrat #2 (voice)
Arthur Keller (voice)
Giovanni Francesco Sagredo (voice)
Nicolo Polo (voice)
Christopher Columbus (voice)
Pinzon (voice)
Bosco (voice)
Lope (voice)
Rodrigo (voice)
Bartholomew Columbus (voice)
Young Christopher Columbus (voice)
Spanish Sailor (voice)
William Bradford (voice)
Miles Standish (voice)
Goodman Cooke (voice)
Martin (voice)
British Officer / Soldier / Knox (voice)
Hamilton (voice)
Conway / Fitzpatrick (voice)
Laurens (voice)
Ben Franklin (voice)
Deborah (voice)
Dr. Spencer (voice)
William (voice)
John (voice)
Mr. Miller (voice)
Governor Keith (voice)
Abraham Lincoln (voice)
Hay / Reporter #1 / Seward / Newspaperman (voice)
Mary (voice)
Willie (voice)
Chase (voice)
Camera Man (voice)
Angry Man (voice)
Frederick Douglass (voice)
Solomon (voice)
Thomas Edison (voice)
Charles Batchelor / Jenkins (voice)
John Kreusi / J.P. Morgan (voice)
Grosvenor Lowery (voice)
Florence Nightingale (voice)
Mary / Mother Nightingale (voice)
Father Nightingale (voice)
Ridley (voice)
Pocahontas (voice)
John Smith (voice)
Captain Argall (voice)
Patoomie (voice)
Governor Dale (voice)
Emile (voice)
Marie (voice)
Pouchet (voice)
Chairman of Medicine (voice)
Le Beque (voice)
Mora (voice)
Nathan / Greek Soldier (voice)
Simon (voice)
Isaac / Greek Captain (voice)
King Antiochus (voice)
Mrs. Fuller (voice)
Gardiner Hubbard (voice)
Drake (voice)
Moses Farmer (voice)
Ludwig van Beethoven as a young man (voice)
Johann van Beethoven / Aristocrat #3 / Constable #2 (voice)
Franz Grillprazer (voice)
Marie Lichnowsky (voice)
Joseph Haydn / Aristocrat #1 / Constable #1 (voice)
Harriet Tubman (voice)
Henry Tubman (voice)
Helen Keller (voice)
Anne Sullivan (voice)
Leonardo da Vinci (voice)
Salai (voice)
Jacques (voice)
La Hire (voice)
French Captain (voice)
Marco Polo (voice)
Rusticelo (voice)
Maffeo Polo (voice)
Galileo Galilei (voice)
Lodovico delle Colombe (voice)
Christopher Clavius (voice)
Pope Paul V (voice)
Marie Curie (voice)
Marie Curie - Age 5 (voice)
Bronia Sklodowska (voice)
Francis Upton (voice)
Hill (voice)
Tad (voice)
Gaspar (voice)