sentences:  Mark Renton
  
  Mark Renton is a fictional character who appears as the protagonist in the novels "Trainspotting" (1993) and "Porno" (2002) written by Irvine Welsh.He also appears in the 1996 film adaption of "Trainspotting" and its sequel "T2 Trainspotting" (2017), in both of which he is portrayed by Ewan McGregor.