Mark Renton

Mark Renton, also known by the nicknames Rent Boy or Rents, is a fictional character and the protagonist of the novels Trainspotting (1993) and Porno (2002) written by Irvine Welsh. He also appears in the 1996 film adaptation of Trainspotting and its sequel T2 Trainspotting (2017), in both of which he is portrayed by Ewan McGregor.