• 
  John Henderson

  regizor

• 
  John Fusco

  scenarist

• 
  Ian Holm

  Water Bailiff
• 
  Joely Richardson

  Laura
• 
  Ted Danson

  Dempsey
• 
  Harris Yulin

  Dr. Mercer
• 
  Richard Vernon

  Aged Professor
• 
  Roger Sloman

  Norwegian

• 
  Annemarie Lawless

  Miss Woodhurst
• 
  Julian Curry

  Englishman
• 
  James Frain

  Adrian Foote
• 
  Debora Weston

  Dr. Hunter
• 
  Edward Hibbert

  Cameo appearance (scientist)
• 
  John Savident

  Dr. Binns
• 
  Derek Lyons

  Student Messenger

• 
  Keith Allen

  Gordon Shoals
• 
  Laurence Richardson

  Fisherman
• 
  Harry Jones

  Wee Wullie
• 
  Nick Brimble

  Andy Maclean
• 
  Brian Pettifer

  Repairman
• 
  John Dair

  Macleish
• 
  Kirsty Graham

  Isabel
• 
  Joseph Greig

  Guideon
• 
  Wolf Kahler

  Dr. Muller
• 
  Philip O'Brien

  Dr. Abernathy
• 
  John Verea

  Tow Truck Driver

• 
  Nicky Kentish Barnes

  coproducator