Trailer
Images
 | Rob Brydon as Andy Van Allen |
 | Steve Coogan as Nick Lee |
 | David Walliams as Jeff Monks |
 | James Corden as Russell |
 | Philip Jackson as Hugh Bispham |
 | Niall Buggy as Graham Ball |
 | Helen Coker as Jenny |
 | Rachel Shelley as Yasmina |
 | Jack Jones as Himself |
 | Brian Conley as Himself |
 | Robin Weaver as Vivienne |
 | Daniel Cerqueira as Daniel |
 | Matt Whitelock as Neil |
| Julian Field as Billy's Time Bike Fan |
| Arturo Venegas as Captain Koulouris |
 | Di Botcher as Mrs Hatcher |
 | Gray O'Brien as 'Casualty' Doctor |
| Lisa McNaught as Gemma Clay |
 | Gavan O'Herlihy as Mickey |
| Shelley Blond as PA Romy |
| Tom Alexopoulos as Jim Schneider |
 | Paul Mark Elliott as Castor Voice Over |
 | Jake Broder as Lloyd |
 | Russell Brand as Woolly Hat Fan |
 | Vasilis Panayi as Photographer |
| Cole Borris as One-eyed Child |
| Dallas Messias as Jack Jones Fan |
| Andrew McHale as Pool 'Castormind' Fan |
| Ugo Mazin as 'Watson' |
| Ian Robertson as 'Ponytailed Scumbag' |
| Lisa Wood as Child of Castor |
| John Buss as Child of Castor |
| Tino Clarke as Child of Castor |
| Lucy Pickard as Child of Castor |
| Stewart White as Child of Castor |
| Stephanie Barrows as Children of Castor Fan |
| Phillip Cattermole as Children of Castor Fan |
| Bernard Coogan as Children of Castor Fan |
| Karen Dunne as Children of Castor Fan |
| Gillian Glanvil as Children of Castor Fan |
| Michelle Greaves as Children of Castor Fan |
| Marie Hogle as Children of Castor Fan |
| Dean Martin as Children of Castor Fan |
| Maxine Robertson as Children of Castor Fan |
| Janet Silmon as Children of Castor Fan (as Janet Silman) |
| Fritz Aardvark Bragpuss as Children of Castor Fan |
| Writing | |
| Tim Firth | Writer |
| Peter Baynham | Writer |
Directing | |
| Declan Lowney | Director |
Production | |
| Steve Coogan | Executive Producer |
| Tim Firth | Associate Producer |
| Alison MacPhail | Producer |
Writing | |
| Michael Marshall Smith | Writer |
Production | |
| Henry Normal | Executive Producer |
Editing | |
| Chris Dickens | Editor |
Camera | |
| Francis De Groote | Director of Photography |
Sound | |
| Corrie Fraser | Original Music Composer |
| Mykael S. Riley | Original Music Composer |
