Gayne Whitman
Narrator

Erville Alderson
Thomas Jefferson (edited from 'Romance of Louisiana')

Don Ameche
Alexander Graham Bell (archive footage)

Heather Angel
Virginia Randolph (edited from 'Daniel Boone')

George Arliss
Alexander Hamilton (edited from 'Alexander Hamilton')

Edward Arnold
Diamond Jim Brady (edited from 'Diamond Jim')

Felix Aylmer
Lord Palmerston (edited from 'Victoria the Great')

George Bancroft
(archive footage)

Binnie Barnes
(archive footage)

John Barrymore
(archive footage)

Lionel Barrymore
(archive footage)

Warner Baxter
(archive footage)

Janet Beecher
(archive footage)

Noah Beery
(archive footage)

Wallace Beery
(archive footage)

Sidney Blackmer
Theodore Roosevelt (edited from 'Teddy the Rough Rider')

Eleanor Boardman
(archive footage)

Beulah Bondi
Mary Wilkins (edited from 'Of Human Hearts')

William Boyd
(archive footage)

Walter Brennan
Ezra Peavey (edited from 'The Buccaneer')