Näyttelijät

• Ewen Bremner — Daniel "Spud" Murphy
• Ewan McGregor — Mark "Rent Boy" Renton
• Irvine Welsh
• Amy Manson — Woman in Club
• Jonny Lee Miller — Simon "Sick Boy" Williamson
• Robert Carlyle — Francis "Franco" Begbie
• Shirley Henderson — Gail Houston
• James Cosmo — Mr. Renton
• Pauline Turner — June Begbie
• Gordon Kennedy — Tulloch
• Steven Robertson — Stoddart
• John Kazek — Tom
• Katie Leung — Nurse
• Tom Urie — Big Bear
• Christopher Douglas — Chris the Oracle
• John Bell — Spud Murphy (aged 20)
• Michael Shaw — Tommy MacKenzie (aged 20)
• Kevin McKidd — Tommy MacKenzie (archive footage)