Paterson Joseph is a British actor. He voices The Demon Choronzon on the Audible original adaptation of The Sandman.
His acting career began in 1989, with a recurring role in the drama series Streetwise. The following year, he appeared in the Royal Shakespeare Company productions of King Lear and Love's Labour's Lost. He is best known for his role as Mark Grace in the BBC drama series Casualty. His credits also include Soldier Soldier, Neverwhere, and My Dad's the Prime Minister. Additionally, he voiced Nigel Townsend in Ghosts of Albion: Legacy and Ghosts of Albion: Embers. From 2003-2015, he appeared as Alan Johnson in Peep Show, and most recently, he portrayed Connor Mason in the NBC action series Timeless.