• 
  Keegan-Michael Key

   American Ranger (1 episode, 2015)
• 
  Tucker Gilmore

   Black Saturn (1 episode, 2015)
• 
  Heidi Gardner

   Cooch (1 episode, 2015)
• 
  Seth Green

  Cliff / rabin
• 
  Bryan Cranston

  Titanium Rex
• 
  Chris Pine

  dr. Devizo / Robo-Dino
• 
  Ron Perlman

  Blazar
• 
  Wes Studi

  Hawk Feather

• 
  Dan Stevens

  Bunsen
• 
  Jon Bernthal

  Rat-A-Pult
• 
  Jennifer Tilly

  Marjorie
• 
  Michelle Trachtenberg

  Blood Moon
• 
  Famke Janssen

  dna. Mantis
• 
  Tom Root

   Brad (1 episode, 2015)
• 
  Zeb Wells

   Jewbot (1 episode, 2015)

• 
  Jillian Bell

   Lex Lightning / ... (9 episodes, 2015)
• 
  Breckin Meyer

   Courtney / ... (11 episodes, 2015-2017)
• 
  Yvette Nicole Brown

  Portia Jones
• 
  Tony Cavalero

  Johnny Rabado
• 
  Gary Anthony Williams

  Liplor
• 
  Patricia Guggenheim

  Patty Mime
• 
  Matthew Senreich

  Lumberjack
• 
  Minnie Driver

  Debbie Devizo
• 
  Donald Faison

  Quiplash