Vin Diesel (born Mark Sinclair Vincent), actor, writer, director & producer. The name "Vin" is simply a shortened version of "Vincent", & the nickname "Diesel" comes from his friends who said he ran off diesel fuel, referring to his non-stop energy. He is known for his roles in Pitch Black, The Fast and the Furious films, xXx, Saving Private Ryan & The Chronicles of Riddick. He also earned acclaim for the voice of the title character in the film The Iron Giant. He has a twin named Paul Vincent.