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

Ben Skelton

Renton (aged 9)

Elijah Wolf

Tommy (aged 9)

Steven Robertson

Stoddart

John Kazek

Tom (Rehab Group)

Gordon Kennedy

Tulloch

Tereza Dušková

Tourism Girl

Lewis Gribben

Dealer

Simon Weir

Jailhouse

Bradley Welsh

Doyle

Katie Leung

Nurse

Thierry Mabonga

Security Officer Wilson

Atta Yaqub

Medical Student

James McElvar

Simon (aged 20)

Connor McIndoe

Renton (aged 20)

Bryan Quinn

Man in Music Video

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)

Amy Manson

Woman in Club

Nebli Basani

Hardman

Fiori Miari

Girl in Sauna

Pauline Lynch

Lizzy

Christopher Mullen

Begbie (aged 20)

Svetlana Yancheva

Veronika's Mother

Blair Flucker

Club Patron (uncredited)

Adam James Johnston

Club Patron (uncredited)