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 Dušková

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 (archive footage)

Michael Shaw

Tommy (aged 20)

Kevin McKidd

Tommy (archive footage)

Lauren Lamb

Baby Dawn (archive footage)

Devon Lamb

Baby Dawn (archive footage)

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

Svetlana Yancheva

Veronika's Mother

Emil Bonev

Veronika's Son

Blair Flucker

Club Patron (uncredited)

Adam James Johnston

Club Patron (uncredited)