Callum Blue

Callum Blue (born 19 August 1977) played Lord James Marchwood in The Sarah Jane Adventures story The Eternity Trap. One of the higher-profile actors to guest star on The Sarah Jane Adventures, Blue also played Mason in Dead Like Me and Zod in Smallville, and has also appeared in The Tudors, Sanctuary, and The Princess Diaries 2. He was a regular during season 2 of Billie Piper's series The Secret Diary of a Call Girl.