Ewan McGregor
Renton
Jonny Lee Miller
Simon
Ewen Bremner
Spud
Robert Carlyle
Begbie / Begbie's Father
Anjela Nedyalkova
Veronika
Shirley Henderson
Gail
Kelly Macdonald
Diane
Pauline Turner
June
Scot Greenan
Frank Junior
James Cosmo
Renton's Father
Irvine Welsh
Mikey Forrester
Logan Gillies
Simon (aged 9)
Ben Skelton
Renton (aged 9)
Aiden Haggarty
Spud (aged 9)
Daniel Smith
Begbie (aged 9)
Elijah Wolf
Tommy (aged 9)
Steven Robertson
Stoddart
John Kazek
Tom (Rehab Group)
Charlie Hardie
Fergus (aged 9)
Scott Aitken
Farmer
Gordon Kennedy
Tulloch
Tereza Duskova
Tourism Girl
Elek Kish
Dozo
Lewis Gribben
Dealer
Dominic Maccoll
Dealer
Calum Verrecchia
Dealer
Simon Weir
Jailhouse
Bradley Welsh
Doyle
Katie Leung
Nurse
Thierry Mabonga
Security Officer Wilson
Atta Yaqub
Medical Student
Christopher Douglas
Chris the Oracle
James McElvar
Simon (aged 20)
Connor McIndoe
Renton (aged 20)
Bryan Quinn
Man in Music Video
Ged Hanley
Social Club Band
Neil Thomson
Social Club Band
Margaret Davies
Social Club Singer
Alex Jackson
Social Club Singer
Tom Urie
Big Bear
Phil Coppola
Boxing Instructor
John Bell
Spud (aged 20)
Kyle Fitzpatrick
Fergus
Eileen Nicholas
Renton's Mother
Michael Shaw
Tommy (aged 20)
Kevin McKidd
Tommy
Lauren Lamb
Baby Dawn
Devon Lamb
Baby Dawn
Amy Manson
Woman in Club
Russell Dunsmore
Hard Guy Driver
Nebli Basani
Hardman
Edyta Szewczyk
Girl in Sauna
Fiori Miari
Girl in Sauna
Pauline Lynch
Lizzy
Christopher Mullen
Begbie (aged 20)
Hamish Haggerty
Young Renton
Daniel Jackson
Young Begbie
Svetla Yancheva
Veronika's Mother
Emil Bonev
Veronika's Son
Blair Flucker
Club Patron (uncredited)
Adam James Johnston
Club Patron (uncredited)