Justin Fletcher as Shaun / Timmy (voice)

John Sparkes as Bitzer / The Farmer (voice)

Omid Djalili as Trumper (voice)

Rich Webber as Shirley (voice)

Kate Harbour as Timmy's Mum / Meryl (voice)

Tim Hands as Slip (voice)

Simon Greenall as Twins (voice)

Andy Nyman as Nuts (voice)

Emma Tate as Hazel (voice)

Jack Paulson as Celebrity with Hair Trouble (voice)

Sean Connolly as Maitre D / Golfer / Stylists / Angry Panto Horse / Hospital Characters (voice)

Henry Burton as Junior Doctor / Animal Containment Visitor (voice)

Dhimant Vyas as Hospital Consultant (voice)

Sophie Laughton as Animal Containment Visitor (voice)

Nia Medi James as Operatic Sheep (voice)

Stanley Unwin as Bus Station Announcer / Hospital Announcer (voice) (archive footage)

Nick Park as Himself (voice) (uncredited)