Full Cast List ▾
Simon Pegg
Neil
Kate Beckinsale
Catherine
Sanjeev Bhaskar
Ray
Rob Riggle
Grant
Robert Bathurst
James Cleverill
Suzy Eddie Izzard
Headmaster
Joanna Lumley
Fenella
Marianne Oldham
Rosie
Emma Pierson
Miss Pringle
Meera Syal
Fiona
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Mojo
Dennis the Dog
Robin Williams
Dennis the Dog (voice)
John Cleese
Chief Alien (voice)
Terry Gilliam
Nasty Alien (voice)
Eric Idle
Salubrious Gat (voice)
Terry Jones
Scientist Alien (voice) / Van Driver
Michael Palin
Kindly Alien (voice)
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James David Robinson
Steve
Judy Loe
Canteen Lady
Alexa Davies
Sandwich Girl
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Ellie Green
Lavender
Professor Brian Cox
Self
James Kermack
Policeman
Brenda Emmanus
Reporter
Neville Phillips
Author
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Edward Fisher
Mr. Eriksson
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Simon Coleman
Police Inspector
Ronan Summers
Security Man
David Annen
Newsreader
Mairi McHaffie
Newsreader
Gavin Scott
Newsreader
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Richard Suchet
Newsreader
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Christopher Chesser
Documentary Voice (voice)
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Margarita Doyle
Alien Computer Voice (voice) / Señorita Lopez
Jud Charlton
Mortician
Lennon Clarke
Bank Robber
