Paterson Joseph (born 22 June 1964) is a British actor. He appeared in the Royal Shakespeare Company productions of King Lear and Love's Labour's Lost in 1990. On television he is known for his roles in Casualty (1997–98), as Alan Johnson in Channel 4 sitcom Peep Show (2003–2015), Green Wing (2004–06), Survivors (2008–10), Boy Meets Girl (2009), as DI Wes Layton in Law & Order: UK (2013–14), and as Connor Mason in Timeless (2016-18). His film roles include The Beach (2000), Greenfingers, (2001) Æon Flux (2005) and The Other Man (2008). He is also known for his various performances of the Marquis de Carabas in adaptations of Neil Gaiman's Neverwhere.