• 
  Genndy Tartakovsky

  regizor

• 
  Dom DeLuise

  Koosy  (3 episodes, 1997-2003)
• 
  Fred Willard

  F.R.E.D. (1 episode, 2002)
• 
  Jeff Bennett

  Dad
• 
  Christine Cavanaugh

  Dexter
• 
  Tom Kenny

  Valhallan (voce)
• 
  Kath Soucie

  Dexter's Mom  (77 episodes, 1996-2003)
• 
  Lauren Tom

  Teacher (1 episode, 1998)

• 
  Rachael MacFarlane

  Miss Salinger (1 episode, 2003)
• 
  Mako

  Main Title Narrator (6 episodes, 1996)
• 
  Ed Gilbert

  Hunter  (1 episode, 1996)
• 
  Dee Bradley Baker

  Billy  (2 episodes, 2003)
• 
  Michael Pataki

  Coach (1 episode, 1996)
• 
  Robert Ridgely

  Commander  (4 episodes, 1996)
• 
  John Kassir

  Guy #2  (1 episode, 1996)

• 
  James Hong

  Mr. Chow (1 episode, 1997)
• 
  Earl Boen

  Commander Chief  (1 episode, 1998)
• 
  Mindy Cohn

  Librarian (1 episode, 2003)
• 
  Dave Coulier

  Coach (1 episode, 2002)
• 
  Brad Garrett

  Driver  (1 episode, 1996)
• 
  Gary Owens

  Blue Falcon (1 episode, 1998)
• 
  Paul Williams
• 
  Maurice LaMarche

  Alien  (3 episodes, 1996-1998)
• 
  Randy Savage

  Rasslor (2 episodes, 1996-1998)
• 
  Martin Mull

  M.A.R. 10 (1 episode, 2002)
• 
  Jay Huguley

  Hokochoo (1 episode, 2002)
• 
  Kathryn Cressida

  Dee Dee  (16 episodes, 1997-2003)
• 
  Eddie Deezen

  Mandark (9 episodes, 1996-2003)
• 
  Candi Milo

  Dexter  (23 episodes, 2002-2003)
• 
  Randy Crenshaw

  Geek Singer  (1 episode, 1997)
• 
  Daran Norris

  Announcer  (3 episodes, 2003)
• 
  Grey Griffin

  Waitress #1  (1 episode, 2002)
• 
  Pamela Adlon

  Brother (1 episode, 2002)
• 
  Frank Welker

  Monkey
• 
  Allison Moore

  Dee Dee

• 
  Paul Rudish

  animation department