• 
  Hajime Yatate

  regizor

• 
  Kôichi Yamadera

  Spike Spiegel (Voce: versiunea japoneza)
• 
  Megumi Hayashibara

  Faye Valentine (Voce: versiunea japoneza)
• 
  Unshô Ishizuka

  Jet Black (Voce: versiunea japoneza)
• 
  Kirk Thornton

  Asimov Solenson (1 episode, 1998)
• 
  Peter Spellos

  Doctor Baccus (1 episode, 1998)
• 
  Dorothy Elias-Fahn

  Space Gate (unknown episodes)
• 
  Atsuko Tanaka

  Coffy (1 episode, 1999)

• 
  Richard Cansino

  White Tiger Representative (1 episode, 1998)
• 
  Beau Billingslea

  Jet Black (26 episodes, 1998-1999)
• 
  Wendee Lee

  Faye Valentine (24 episodes, 1998-1999)
• 
  Melissa Fahn

  Edward Wong Hau Pepelu Tivruski IV (16 episodes, 1998-1999)
• 
  Bob Buchholz

  Glassed Lab Tech, Memphis Brother, Piccaro's Henchman, Tom Wiles (unknown episodes)
• 
  William Knight

  Old Man (unknown episodes)
• 
  Mona Marshall

  Wen (1 episode, 1998)

• 
  Kappei Yamaguchi

  Rhint (1 episode, 1998)
• 
  Steve Kramer

  Carlos, Otto, Huey, Whitney Matsumoto (unknown episodes)
• 
  Ryusei Nakao

  Roco Bonnaro (1 episode, 1998)
• 
  Shigeru Chiba

  Video Maniac (1 episode, 1998)
• 
  Norio Wakamoto

  Vicious (5 episodes, 1998-1999)
• 
  Takaya Hashi

  Ted Bower, the Teddy Bomber (1 episode, 1999)
• 
  Eddie Frierson

  Space Warrior (unknown episodes)
• 
  Robert Axelrod

  Dr. Londez (1 episode, 1999)
• 
  Hôchû Ôtsuka

  Shaft (1 episode, 1999)
• 
  Joji Nakata

  Mpu (1 episode, 1998)
• 
  Ryuzaburo Otomo

  Abdul Hakim (1 episode, 1998)
• 
  Michael Sorich

  Giraffe (1 episode, 1998)
• 
  Michael McConnohie

  Gate Company Chairman, Male TV Show Host, Hospital Guard (unknown episodes)
• 
  Kenji Utsumi

  Appledelhi Sinise Hessap Lutfen (1 episode, 1999)
• 
  Gara Takashima

  Julia (2 episodes, 1999)
• 
  Barbara Goodson

  Pet Shop Owner (1 episode, 1998)
• 
  Matthew Mercer

  Various Characters (3 episodes, 1998)
• 
  Lia Sargent

  Judy (unknown episodes)
• 
  Rebecca Forstadt

  Muriel, Boy Witness (1 episode, 1998)
• 
  George Cheung

  Voci adiţionale (episoade necunoscute)
• 
  Joe Romersa

  Abdul Hakim (1 episode, 1998)
• 
  William Bassett

  Domino Walker (1 episode, 1999)
• 
  Yumi Tôma

  Wen (1 episode, 1998)
• 
  Joshua Seth

  Voci adiţionale (episoade necunoscute)
• 
  Shinpachi Tsuji

  Huey (1 episode, 1998)
• 
  Jamieson Price

  Gordon (1 episode, 1998)
• 
  Maaya Sakamoto

  Stella Bonnaro (1 episode, 1998)
• 
  Steve Blum

  Spike Spiegel (26 episodes, 1998-1999)
• 
  Bill Timoney

  Voci adiţionale (episoade necunoscute)
• 
  Michael Gregory

  Voci adiţionale (episoade necunoscute)
• 
  Carol Stanzione

  Annie (2 episodes, 1998-1999)
• 
  Takehiro Koyama

  Laughing Bull (unknown episodes)
• 
  Hiroshi Naka

  Jobin (unknown episodes)
• 
  Banjô Ginga

  Tongpu (1 episode, 1999)
• 
  Steve Staley

  Rhint, Sgt. Frank (unknown episodes)
• 
  Daran Norris

  Bartender  (3 episodes, 1998-1999)
• 
  Kevin Seymour

   Additional Voices (26 episodes, 1998-1999)
• 
  Isshin Chiba

   Man 2 / ... (17 episodes, 1998-1999)
• 
  Kevin Seymour

   Additional Voices (27 episodes, 1998-1999)
• 
  Aoi Tada

  Edward Wong Hau Pepelu Tivruski IV