John Nesbitt
— Narrator (voice)
Leonard Penn
— Rescue Ship Crewman
Rhea Mitchell
— Passenger on Mary Celeste
Harry Allen
— Bos'n of Rescue Ship
Lee Prather
— Minor Role
Richard Alexander
— Crewman of Mary Celeste
Francis X. Bushman Jr.
— Minor Role (uncredited)
Edward Kilroy
— Minor Role (uncredited)
Claude King
— Chief Officer of Ship Inquiry Board (uncredited)
Frank Shannon
— Minor Role (uncredited)
Charles Sullivan
— Crewman of Mary Celeste (uncredited)
Harry Tenbrook
— Crewman of Rescue Ship (uncredited)
Gene Coogan
— Board of Inquiry Member (uncredited)
Frank Dae
— Board of Inquiry Member (uncredited)
Edmund Mortimer
— Board of Inquiry Member (uncredited)