On screen
Cast
15 credited performers
Paul Robeson
Umbopa
Cedric Hardwicke
Allan Quartermain
Anna Lee
Kathleen 'Kathy' O'Brien
Roland Young
Cmdr. John Good
John Loder
Sir Henry Curtis
Frederick Leister
Diamond Buyer
Artwork unavailable
Robert Adams
Twala
Artwork unavailable
Tony Wane
Infadoos
Artwork unavailable
Arthur Sinclair
O'Brien
Artwork unavailable
Arthur Goullet
Sylvestra
Artwork unavailable
Makubalo Hlubi
Kapse
Artwork unavailable
Mjujwa
Scragga
Sydney Fairbrother
Gagool
Artwork unavailable
Alf Goddard
Red
Artwork unavailable
Ben Kubela
Character not listed