Jonny Lee Miller

as Graeme Obree

Sean Brown

as Young Graeme Obree

Joseph Carney

as Child Gang Leader

Billy Boyd

as Malky

Laura Fraser

as Anne Obree

Brian Cox

as Douglas Baxter

Ron Donachie

as Scobie

Morven Christie

as Katie

David Hounslow

as "Specialized" Representative

Gary Hollywood

as Cycle Courier

Pauline Lynch

as Second Office Receptionist

Moray Hunter

as Armstrong

Steven Berkoff

as Ernst Hagemann

Niall Greig Fulton

as Adult Gang Leader

Adrian Grove

as Chris Boardman