• 
  Mamoru Miyano

  Kiba
• 
  Kenta Miyake

  Tsume
• 
  Akio Suyama

  Hige
• 
  Bob Papenbrook

  Ship Commander (unknown episodes)
• 
  Kirk Thornton

  Leara's Father, Lab Assistant (unknown episodes)
• 
  Peter Spellos

  Bartender (1 episode)
• 
  Atsuko Tanaka

  Jagura (unknown episodes)
• 
  Michael Forest

  Shopkeeper (unknown episodes)

• 
  Beau Billingslea

  Giant Walrus (unknown episodes)
• 
  Bob Buchholz

  Hubb Lebowski (15 episodes, 2003-2004)
• 
  William Knight

  Old Wolf (unknown episodes)
• 
  Mona Marshall

  Toboe (unknown episodes)
• 
  Steve Kramer

  Moe (unknown episodes)
• 
  Kari Wahlgren

  Cher Degri (unknown episodes)
• 
  Michelle Ruff

  Gossiping Woman #2 (unknown episodes)

• 
  Johnny Yong Bosch

  Kiba (unknown episodes)
• 
  Barbara Goodson

  Hanabito (unknown episodes)
• 
  Lia Sargent

  Neige (unknown episodes)
• 
  Dave Wittenberg

  Sedo (unknown episodes)
• 
  Joshua Seth

  Hige (unknown episodes)
• 
  Catherine Battistone

  Old Prisoner (unknown episodes)
• 
  Bridget Hoffman

  Cole (1 episode)
• 
  Maaya Sakamoto

  Hamona (unknown episodes)
• 
  Crispin Freeman

  Tsume (unknown episodes)
• 
  Steve Blum

  Darcia (30 episodes, 2003-2004)
• 
  Unshô Ishizuka

  Quent Yaiden (unknown episodes)
• 
  Steve Staley

  Eek (unknown episodes)
• 
  Mayumi Asano

  Blue
• 
  Tom Wyner

  Quent Yaiden
• 
  Sherry Lynn

  Cheza
• 
  Mitsuru Miyamoto

  Hubb Lebowski
• 
  Jessica Straus

  Blue
• 
  Kaho Kôda

  Cher Degre
• 
  Takaya Kuroda

  Darcia
• 
  Arisa Ogasawara

  Cheza
• 
  Hiroki Shimowada

  Toboe
• 
  Darren Pleavin

  30 episodes, 2003-2004

• 
  Keiko Nobumoto

  creat de