Ewan McGregor

Character: Renton

Jonny Lee Miller

Character: Simon

Ewen Bremner

Character: Spud

Robert Carlyle

Character: Begbie / Begbie's Father

Anjela Nedyalkova

Character: Veronika

Shirley Henderson

Character: Gail

Kelly Macdonald

Character: Diane

Pauline Turner

Character: June

Scot Greenan

Character: Frank Junior

James Cosmo

Character: Renton's Father

Irvine Welsh

Character: Mikey Forrester

Logan Gillies

Character: Simon (aged 9)

Ben Skelton

Character: Renton (aged 9)

Aiden Haggarty

Character: Spud (aged 9)

Daniel Smith

Character: Begbie (aged 9)

Elijah Wolf

Character: Tommy (aged 9)

Steven Robertson

Character: Stoddart

John Kazek

Character: Tom (Rehab Group)

Charlie Hardie

Character: Fergus (aged 9)

Scott Aitken

Character: Farmer

Gordon Kennedy

Character: Tulloch

Tereza Dušková

Character: Tourism Girl

Elek Kish

Character: Dozo

Lewis Gribben

Character: Dealer

Dominic Maccoll

Character: Dealer

Calum Verrecchia

Character: Dealer

Simon Weir

Character: Jailhouse

Bradley Welsh

Character: Doyle

Katie Leung

Character: Nurse

Thierry Mabonga

Character: Security Officer Wilson

Atta Yaqub

Character: Medical Student

Christopher Douglas

Character: Chris the Oracle

James McElvar

Character: Simon (aged 20)

Connor McIndoe

Character: Renton (aged 20)

Bryan Quinn

Character: Man in Music Video

Ged Hanley

Character: Social Club Band

Neil Thomson

Character: Social Club Band

Margaret Davies

Character: Social Club Singer

Alex Jackson

Character: Social Club Singer

Tom Urie

Character: Big Bear

Phil Coppola

Character: Boxing Instructor

John Bell

Character: Spud (aged 20)

Kyle Fitzpatrick

Character: Fergus

Eileen Nicholas

Character: Renton's Mother (archive footage)

Michael Shaw

Character: Tommy (aged 20)

Kevin McKidd

Character: Tommy (archive footage)

Lauren Lamb

Character: Baby Dawn (archive footage)

Devon Lamb

Character: Baby Dawn (archive footage)

Amy Manson

Character: Woman in Club

Russell Dunsmore

Character: Hard Guy Driver

Nebli Basani

Character: Hardman

Edyta Szewczyk

Character: Girl in Sauna

Fiori Miari

Character: Girl in Sauna

Pauline Lynch

Character: Lizzy

Christopher Mullen

Character: Begbie (aged 20)

Hamish Haggerty

Character: Young Renton

Daniel Jackson

Character: Young Begbie

Svetlana Yancheva

Character: Veronika's Mother

Emil Bonev

Character: Veronika's Son

Blair Flucker

Character: Club Patron (uncredited)

Adam James Johnston

Character: Club Patron (uncredited)