Rob Brydon

Character: Andy Van Allen

Steve Coogan

Character: Nick Lee

David Walliams

Character: Jeff Monks

James Corden

Character: Russell

Philip Jackson

Character: Hugh Bispham

Niall Buggy

Character: Graham Ball

Helen Coker

Character: Jenny

Rachel Shelley

Character: Yasmina

Jack Jones

Character: Himself

Brian Conley

Character: Himself

Robin Weaver

Character: Vivienne

Daniel Cerqueira

Character: Daniel

Matt Whitelock

Character: Neil

Julian Field

Character: Billy's Time Bike Fan

Arturo Venegas

Character: Captain Koulouris

Di Botcher

Character: Mrs Hatcher

Gray O'Brien

Character: 'Casualty' Doctor

Lisa McNaught

Character: Gemma Clay

Gavan O'Herlihy

Character: Mickey

Shelley Blond

Character: PA Romy

Tom Alexopoulos

Character: Jim Schneider

Paul Mark Elliott

Character: Castor Voice Over

Jake Broder

Character: Lloyd

Russell Brand

Character: Woolly Hat Fan

Vasilis Panayi

Character: Photographer

Cole Borris

Character: One-eyed Child

Dallas Messias

Character: Jack Jones Fan

Andrew McHale

Character: Pool 'Castormind' Fan

Ugo Mazin

Character: 'Watson'

Ian Robertson

Character: 'Ponytailed Scumbag'

Lisa Wood

Character: Child of Castor

John Buss

Character: Child of Castor

Tino Clarke

Character: Child of Castor

Lucy Pickard

Character: Child of Castor

Stewart White

Character: Child of Castor

Stephanie Barrows

Character: Children of Castor Fan

Phillip Cattermole

Character: Children of Castor Fan

Bernard Coogan

Character: Children of Castor Fan

Karen Dunne

Character: Children of Castor Fan

Gillian Glanvil

Character: Children of Castor Fan

Michelle Greaves

Character: Children of Castor Fan

Marie Hogle

Character: Children of Castor Fan

Dean Martin

Character: Children of Castor Fan

Maxine Robertson

Character: Children of Castor Fan

Janet Silmon

Character: Children of Castor Fan (as Janet Silman)

Fritz Aardvark Bragpuss

Character: Children of Castor Fan