Victor Jory
as Captain Arthur Keller
Beah Richards
as Viney, Keller Maid (uncredited)
Andrew Prine
as James Keller
Anne Bancroft
as Annie Sullivan
Patty Duke
as Helen Keller
Inga Swenson
as Kate Keller
Kathleen Comegys
as Aunt Ev
Jack Hollander
as Mr. Anagnos of Perkins School in Boston (uncredite