The Tar Man is an 18th-century criminal and the main antagonist in the Time Trilogy. He is employed to Lord Luxon and is a brother of Gideon Seymour. He got his name after surviving a tarring and hanging when he was a teen. He is bent on domination and wants to keep the antigravity (time) machine for himself. Name. Nathaniel Seymour.  Alias. Blue skin. The Tar Man. Age:  34. Date of birth: 1729. Date of intended death: 1743. Job:  Master criminal, Lord Luxon's Henchmen. Sidekicks: Anjali, Tom. Spouse: Unknown. Possible love interest:  Dr. Pierietti.