- Michael Van Wijk
- General Ajax Van Rollin
- Steve McCarten
- Keith the Landlord
- Elaine Caulfield
- Mrs. Strode
- Wyn Wallace
- Tim / Vanys Elefaye (as William J. Wallace)
- Faye Williamson
- Cathy / Sylvektra
- Harry Tomlin
- Dennis
- Sam Dacombe
- Stoner
- Seager Dixon
- Head Crush Scientist / King Stoner
- Matt Miles
- Marcus
- Radi Nikolov
- The Operative
- Josh Kelly Jones
- Brian / Borr'an Boneripper (as Joshua Jones)
- George Rogers
- Sunglasses Party Guest
- Levon Gharibian
- Dr. Jack Murphy
- Benjamin Clarke
- C.R.I.T. / Skater Student
- Theo Skinner
- Denim Party Guest
- Edward Cooper
- Handshake Student #2
- Connor Bruty
- Grunge Party Guest
- Kurt Dirt
- The Big Bad
- Mary Wallace
- Librarian
- Laura Sixt
- Maxi-skirt Student
- Sophie Martin
- Dr. Martin
- Immy Howarth
- High-Pigtail Student
- Deana Penn
- Gum-chewing Student
- Stephanie Brewer
- Student with Photos / Housekeeper
- Robert Wilson
- Long-haired Student
- Zavier De Kment
- Alice the Swot
- Henry Turner-Ward
- Walkman Student
- Freddie Tyson Brown
- Headmaster
- Holly Spillar
- Pixie Girl
- Leila Dara
- Disturbed Bookworm
- Matt Blackhurst
- Roddy
- Georgia Blainey
- Girl at Library #2
- Joe Cooper
- Guts Scientist
- Conrad Cotterman
- Clement Solis
- Mark Sillence
- The Operative
- Sam Tokely
- Bearded Student
- Emma Inkster
- Roddy Fangirl
- Jack Warr
- Man at Library
- Edward Page
- General Van Rollin's Advisor
- Matt Flynn
- Tommo
- Cristina Ingrao
- Girl at Library #1
