Cast 26

1. 

   Simon Pegg

   Neil Clarke

2. 

   Kate Beckinsale

   Catherine

3. 

   Rob Riggle

   Grant

4. 

   Sanjeev Bhaskar

   Ray

5. 

   Joanna Lumley

   Fenella

6. 

   Marianne Oldham

   Rosie

7. 

   Eddie Izzard

   Headmaster

8. 

   Robert Bathurst

   James Cleverill

9. 

   Judy Loe

   Canteen Lady

10. 

    Brian Cox

    Self

11. 

    Meera Syal

    Fiona

12. 

    Emma Pierson

    Miss Pringle

13. 

    David Annen

    Newsreader

14. 

    Mairi McHaffie

    Newsreader

15. 

    Gavin Scott

    Newsreader

16. 

    Robin Williams

    Dennis the Dog (voice)

17. 

    John Cleese

    Chief Alien (voice)

18. 

    Terry Gilliam

    Nasty Alien (voice)

19. 

    Eric Idle

    Salubrious Gat (voice)

20. 

    Terry Jones

    Scientist Alien (voice) / Van Driver

21. 

    Michael Palin

    Kindly Alien (voice)

22. 

    Alexa Davies

    Sandwich Girl

23. 

    Neville Phillips

    Author

24. 

    Ronan Summers

    Security Man

25. Jud Charlton

    Mortician

26. 

    James Kermack

    Policeman

Crew 15