Jonathan Lee Miller is an English-American film, television and theatre actor. He achieved early success for his portrayal of Simon "Sick Boy" Williamson in the dark comedy drama film Trainspotting and as Dade Murphy in Hackers, before earning further critical recognition for his performances in Afterglow, Mansfield Park, The Flying Scotsman, Endgame and T2 Trainspotting; for The Flying Scotsman he received a London Film Critics' Circle nomination for Actor of the Year.