Ben / Captain X / Ben Wilson (39 episodes, 2007-2010)
Harry / Harry Seaforth / Green Termite / Termite / The Green Termite (39 episodes, 2007-2010)
Nightlite / Roy / Roy Bottle (38 episodes, 2007-2010)
Vicki Van Horton (37 episodes, 2007-2010)
Shani Rai / Wired / Shani (35 episodes, 2007-2010)
Ice / ICE / Blaze (33 episodes, 2007-2010)
Laura / Laura Wilson (32 episodes, 2007-2010)
Dave Ruben (28 episodes, 2007-2010)
Renfield / Dominic Renfield (26 episodes, 2007-2010)
Dana Dinkley / Danna Dinkley (24 episodes, 2007-2010)
Lars Tinkle (19 episodes, 2007-2010)
Hail (19 episodes, 2008-2010)
Wendy Choo / Wendy (10 episodes, 2010)
Mayor Jackson / Inspector Jackson (9 episodes, 2007-2010)
Joseph (8 episodes, 2007)
Sleet (8 episodes, 2010)
Principal Locum / Lex Locum (7 episodes, 2007-2008)
Terry (7 episodes, 2007-2008)
Sleet (7 episodes, 2008)
The Comedian (6 episodes, 2007-2010)
Alien #2 / Cosmonaut #1 (6 episodes, 2007-2008)
Dutch Jimmy (5 episodes, 2007-2008)
Incredible Master Zero / Master Zero / The Incredible Master Zero (5 episodes, 2008-2010)
Irish Tim (4 episodes, 2007-2008)
Tony Baritony (4 episodes, 2007)
Constable Len / Police Chief Len (4 episodes, 2007-2008)
Felicity Cartwheel (4 episodes, 2007)
Gerald Lester (4 episodes, 2007)
Neville / Eric / 1st Knight (4 episodes, 2007-2008)
Mr. Charmers (4 episodes, 2008)
Matron Cleaver / Matron Clever / Waitress (3 episodes, 2007-2008)
Evil Jester / Jester / The Jester (3 episodes, 2007-2008)
Alien #1 / MC (3 episodes, 2007-2008)
The Wraith (3 episodes, 2008)
The Hammer (2 episodes, 2007)
Barkeep / The Conjuror (2 episodes, 2007-2010)
Mad Mike Molloy / Male Nurse (2 episodes, 2007-2008)
Doctor Evol / Reg Butterworth (2 episodes, 2007)
Geologist / Mr. Strep (2 episodes, 2007)
Eugene / Officer Moody (2 episodes, 2008)
Ethan Poindexter / Everitt (2 episodes, 2008)
Dean (2 episodes, 2008)
Lana Lane / Rachel (2 episodes, 2008)
Electro Woman (2 episodes, 2010)
Jimmy Swift (2 episodes)
Mayor Peterson (2 episodes)
Doctor Zeno (2 episodes)
Orderly #1 (1 episode, 2007)
Mrs Potemkin (1 episode, 2007)
Dominque (1 episode, 2007)
Wraith (1 episode, 2007)
Damon (1 episode, 2007)
Ms. Plato (1 episode, 2007)
Victor Zeno (1 episode, 2007)
General Quarters (1 episode, 2007)
Wendy Wendylson (1 episode, 2007)
Smally Small (1 episode, 2007)
Dean Bridges (1 episode, 2007)
Gentleman Caller (1 episode, 2007)
Amy Osbourne (1 episode, 2007)
Unobtainium (1 episode, 2007)
Mr. Van Horton (1 episode, 2007)
Karl (1 episode, 2007)
Easter Bunny (1 episode, 2007)
Dr. Elaine Madison (1 episode, 2007)
Geyser Girl (1 episode, 2007)
Mayor Jacksons Assistant (1 episode, 2007)
Rex Gilligan (1 episode, 2007)
Ali Giblet (1 episode, 2007)
Court Clerk (1 episode, 2007)
Lionel (1 episode, 2007)
Zeta's Mum (1 episode, 2008)
Dr. Helen (1 episode, 2008)
Parker Pen (1 episode, 2008)
Mr. Terrific (1 episode, 2008)
Bev Lockjaw (1 episode, 2008)
Colonel Titanium (1 episode, 2008)
Young Renfield (1 episode, 2008)
Madame Lulu (1 episode, 2008)
Barman (1 episode, 2008)
Nigel (1 episode, 2008)
Time Vampire (1 episode, 2008)
Lloyd (1 episode, 2008)
Gravity Girl (1 episode, 2008)
Warden Lovechild (1 episode, 2008)
Barry Rai (1 episode, 2008)
Zeta Nitro (1 episode, 2008)
Big Deek (1 episode, 2008)
Lizzie Lang (1 episode, 2008)
Deb (1 episode, 2008)
Tenacious Tantrum (1 episode, 2008)
Howard (1 episode, 2008)
Cosmic Man (1 episode, 2008)
Higgins (1 episode, 2008)
Miss Middlemarch (1 episode, 2008)
Beverly Wilson (1 episode, 2008)
Cosmic Gal (1 episode, 2008)
Emily's Mum (1 episode, 2008)
The Hungarian (1 episode, 2008)
Felicity Cartwheel (1 episode, 2008)
Mister Fabulous (1 episode, 2010)
Mrs. Kravitz (1 episode, 2010)
Mr. Kravitz (1 episode, 2010)
Professor Brainchild (1 episode)
Christmas Carole (1 episode)
The Conjurer (1 episode)
The Atomiser (1 episode)
Madame Lulu (1 episode)
Cyclone (1 episode)
Mezzimo (1 episode)
Jester's thug (1 episode)
Officer Doody (1 episode)
Deacon (1 episode)
Doctor (1 episode)
Sister Elizabeth (1 episode)
Mrs. Blandslip (1 episode)
Hispanic Gangster (1 episode)
Sven (1 episode)
Nurse (Francesca Fityus) (1 episode)
Woman (1 episode)
Jack O'Lantern / Jasper Applegate (1 episode)
Bad Barry (1 episode)