Jack Dean

as Mr. Gray

as John Manners

as The Great Glen Carter, known as Calistro

as John Kenwood

as Dr. Max Brownell

as Lord Romsey

as Richard Darcier

as Pete Sontag

as Steve Boyce

as Jim Webster

as Jack Hunter

as Richard Wayne

as John Clarke

as Dirck Mead

as Richard Hardy

as Lord Reginald Belsize