Sebastian Roché is a French-American actor. He is known for his roles as Kurt Mendel in Odyssey 5, Jerry Jacks in General Hospital, Thomas Jerome Newton in Fringe, Balthazar in Supernatural, Mikael in both The Vampire Diaries and The Originals, and Reichsminister Martin Heusmann in The Man in the High Castle.

Odyssey 5 is a Canadian science fiction television series, which was shown in 2002 on Space in Canada and on Showtime in the United States. The premise involves five space travelers who witness the destruction of the Earth; they are given the opportunity to travel to the past to identify and prevent the cataclysm.