• 
  Steve Blum

  Mighty No. 8 (Countershade) (voice)
• 
  Bénédicte Bosc

  Mighty No. 2 (Cryosphere) (voice)
• 
  Sébastien Desjours

  Mighty No. 9 (Beck) (voice)
• 
  Alexandre Gillet

  Mighty No. 7 (Brandish) (voice)
• 
  Jean-Bernard Guillard

  Dr. Blackwell (voice)
• 
  Bob Joles

  Dr. Blackwell (voice)
• 
  Tetsu Inada

  Mighty No. 4 (Seismic) (voice)
• 
  Brian T. Delaney

  Mighty No. 5 (Battalion) (voice)

• 
  Sylvain Agaesse

  Mr. Gregory Graham (voice)
• 
  Benoît Dupac

  Mighty No. 6 (Aviator) (voice)
• 
  Jan Johns

  Mighty No. 3 (Dynatron) (voice)
• 
  John Paul Karliak

  Mighty No. 7 (Brandish) / Narrator (voice)
• 
  Mao Ichimichi

  Call (voice) (as M·A·O)
• 
  Francine Baudelot

  Call / Newscaster (voice)
• 
  Ikkan

  Narrator (voice)