Harry Hill

Character: Harry Hill

Julie Walters

Character: Nan

Simon Bird

Character: Vet

Guillaume Delaunay

Character: Kisko

Sheridan Smith

Character: Michelle

Julian Barratt

Character: Conch

Johnny Vegas

Character: Abu (voice)

Marc Wootton

Character: Barney Cull

Jim Broadbent

Character: Cleaner

Matt Lucas

Character: Otto

Camilla Beeput

Character: Veterinary Receptionist

Shingai Shoniwa

Character: Station Attendant

Tim Key

Character: Toilet Attendant

Dave Thompson

Character: Brain Number Two

Mike Facherty

Character: Mr. Jones

Sean Foley

Character: Fox

Jon Wennington

Character: Motorist (uncredited)

Llewella Gideon

Character: Midwife