• 
  Wayne Knight

  13 episodes, 2018
• 
  Tony Anselmo

  13 episodes, 2018
• 
  Dee Bradley Baker

  13 episodes, 2018
• 
  Jaime Camil

  13 episodes, 2018
• 
  Grey Griffin

  13 episodes, 2018
• 
  Jessica DiCicco

  13 episodes, 2018
• 
  Thomas Lennon

  8 episodes, 2018
• 
  Tress MacNeille

  5 episodes, 2018

• 
  Kevin Michael Richardson

  12 episodes, 2018
• 
  Eric Bauza

  13 episodes, 2018
• 
  Jim Cummings

  8 episodes, 2018
• 
  Matt Danner

  8 episodes, 2018
• 
  Leonoor Koster

   April, May and June
• 
  David Kaye

  Dapper Duck
• 
  Dan Bakkedahl

  Ghost George Washington

• 
  John O'Hurley

  King Arthur
• 
  Nicolas Roye

  King Vomit