• 
  Craig McCracken

  regizor
• 
  Craig Kellman

  regizor

• 
  Candi Milo

  Coco  (55 episodes, 2004-2009)
• 
  Keith Ferguson

  Blooregard
• 
  Sean Marquette

  Mac
• 
  Grey Griffin

  Frankie
• 
  Craig McCracken

  Cartoon Executive (1 episode, 2006)
• 
  Tara Strong

  Terrence  (9 episodes, 2004-2009)

• 
  Kevin McDonald

  Ivan (1 episode, 2005)
• 
  Kevin Michael Richardson

  Clock Friend  (4 episodes, 2005-2009)
• 
  Phil LaMarr

  Wilt  (56 episodes, 2004-2009)
• 
  Tom Kenny

  Eduardo  (56 episodes, 2004-2009)
• 
  Tom Kane

  Mr. Herriman  (52 episodes, 2004-2009)
• 
  Daran Norris

  Imaginary Man (1 episode, 2006)