• 
  Frank Squillace

  regizor

• 
  Marsha F. Griffin

  scenarist

• 
  Candi Milo

  Mama lui June
• 
  Jeff Bennett

  Jody Viking
• 
  Dee Bradley Baker

  Derek
• 
  S. Scott Bullock

  Camel #1
• 
  Kath Soucie

  Gigi
• 
  Daran Norris

  Camel #2

• 
  Jane Lynch

  Madame Rothchild (1 episode, 2005)
• 
  Rip Taylor

  Horrifying Monster (1 episode, 2005)
• 
  Clancy Brown

  Geek Monster #4  (1 episode, 2005)
• 
  Tara Strong

  Roger  (3 episodes, 2005-2007)
• 
  Susan Silo

  Auntie Roon (1 episode, 2005)
• 
  Amy Hill

  Additional Voices  (2 episodes, 2005)
• 
  Dan Finnerty

  Singer (1 episode, 2005)

• 
  Phil LaMarr

  Marcus, Additional Voices (unknown episodes)
• 
  Maurice LaMarche

  Dimitri the Terrible  (1 episode, 2005)
• 
  Billy West

  Leprechaun (2 episodes, 2005)
• 
  Carlos Alazraqui

  Monroe  (4 episodes, 2005-2007)
• 
  Scotch Ellis Loring
• 
  Martin Jarvis

  William  (2 episodes, 2005-2006)
• 
  Alexander Polinsky

  Additional Voices  (31 episodes, 2005-2006)
• 
  Jessica Walter

  Cordoth's Daughter  (2 episodes, 2006-2007)
• 
  Adam Wylie

  Deputy Minion  (1 episode, 2005)
• 
  Lara Jill Miller

  Juniper Lee
• 
  Colleen O'Shaughnessey

  Jody Irwin