• 
  Milo Ventimiglia

  Logan / Wolverine
• 
  Keiji Fujiwara

  Tony Stark
• 
  Takako Honda

   Dr. Chika Tanaka
• 
  Shizuka Itô

   Nanami Ota (as Shizuka Ito)
• 
  Tony Oliver

  3 episodes, 2010-2011
• 
  Steve Blum

  3 episodes, 2011
• 
  Neil Kaplan

  2 episodes, 2010-2011
• 
  Cam Clarke

  2 episodes, 2011

• 
  Ben Diskin

  5 episodes, 2010-2011
• 
  Crispin Freeman

  2 episodes, 2011
• 
  Daran Norris

  2 episodes, 2010-2011
• 
  Adrian Pasdar

  3 episodes, 2010-2011
• 
  Eden Riegel

  3 episodes, 2010-2011
• 
  Fred Tatasciore

  3 episodes, 2011
• 
  Travis Willingham

  3 episodes, 2011

• 
  Michael Sinterniklaas

  2 episodes, 2011
• 
  Kyle Hebert

  5 episodes, 2010-2011
• 
  JB Blanc

  2 episodes, 2010-2011
• 
  Keith Silverstein

  3 episodes, 2011
• 
  Laura Bailey

  4 episodes, 2010-2011
• 
  Gwendoline Yeo

  2 episodes, 2011
• 
  Stephanie Sheh

  4 episodes, 2011
• 
  Troy Baker

  5 episodes, 2010-2011
• 
  Roger Craig Smith

  4 episodes, 2010-2011
• 
  Kim Mai Guest

  2 episodes, 2011
• 
  Vic Mignogna

  5 episodes, 2011
• 
  Harold Perrineau

  2 episodes, 2011
• 
  Sam Riegel

  3 episodes, 2011
• 
  Cindy Robinson

  2 episodes, 2010-2011
• 
  Grant George

  2 episodes, 2011
• 
  Kate Higgins

  4 episodes, 2011
• 
  Scott Porter

  2 episodes, 2011