Charles Laughton as Captain Kidd

Randolph Scott as Adam Mercy / Adam Blayne

Barbara Britton as Lady Anne Dunstan

Reginald Owen as Cary Shadwell

John Carradine as Orange Povey

Gilbert Roland as Jose Lorenzo

John Qualen as Bart Blivens

Sheldon Leonard as Cyprian Boyle

William Farnum as Capt. Rawson

Henry Daniell as King William III

Abner Biberman as Theodore Blades (uncredited)

Clifford Brooke as (uncredited)

Harry Cording as Newgate Prison Warder (uncredited)

James Dime as Pirate (uncredited)

Lumsden Hare as Lord Fallsworth (uncredited)

Al Hill as Peter Sharfstone (uncredited)

Keith Hitchcock as (uncredited)

George Huggins as Pirate (uncredited)

Jack Kenny as Pirate (uncredited)

Frank Mills as Ship's Sailor Waiter (uncredited)

Edgar Norton as Nobleman with King William III (uncredited)

Reginald Sheffield as Captain of the King's Guard (uncredited)

Cap Somers as Pirate (uncredited)

Ray Teal as Michael O'Shawn (uncredited)

Eric Wilton as Nobleman with King William III (uncredited)

Frederick Worlock as Landers - Newgate Prison Governor (uncredited)