Alan

Josh Duhamel

Sarah

Antonia Thomas

Brian

Michael Socha

Joe

James Cosmo

Lauren

Charity Wakefield

Mrs. Lawrence

Fenella Woolgar

The Monkey

Colin Michael Carmichael

Parent (uncredited)

Dywayne Thomas

Gigi Burgdorf

Dylan

Arris Crooke

Grace

Eadie Johnson

Jeff

Laurie Kynaston

Julie

Emer Kenny

Chase

Rufus Hound

The Elephant

Edward Linard

Baby Dylan

Aondo-Kuma Feese

Baby Grace

Rosa Lovell

Andrew the Exterminator

Andy Brady

School Secretary

Claire Riecol

Bob

Mihai Arsene

(Self) Choreographer/Lion

Jake Nwogu

Nurse (uncredited)

Caroline Glass