Andy Serkis as Ian Dury

Tom Hughes as Chaz Jankel

Olivia Williams as Betty Dury

Naomie Harris as Denise

Bill Milner as Baxter Dury

Ray Winstone as Bill Drury

Arthur Darvill as Mick Gallagher

Luke Evans as Clive Richards

Mackenzie Crook as Russell Hardy

Noel Clarke as Desmond

Toby Jones as Hargreaves

Ralph Ineson as The Sulphate Strangler

Charlotte Beaumont as Jemima Dury

Sam Spruell as Kilburns' Drummer

Andrew Knott as Reporter

Poppy Miller as Carer

Michael Maloney as Graham

Chloe Arrowsmith as Girl in bed with The Blockheads Charley (uncredited)

Catherine Balavage as Crazy Drug Girl