Mike Slee Director Toni Myers Narrator Calum Finlay Henry Bates Actor Begê Muniz Tando Actor Ed Birch Alfred Wallace Actor Billy Postlethwaite Samuel Stevens Actor Robert Daws Charles Darwin Actor Carl Knutson Screenwriter Wendy MacKeigan Screenwriter, Producer Jonathan Barker Executive Producer Sean B. Carroll Executive Producer Vera Regina Piagetti Sanada Producer Yuri Sanada Producer