• 
  Max Charles

   Sherman (unknown episodes)
• 
  Kari Wahlgren

   Additional Voices / ... (4 episodes, 2015)
• 
  Chris Parnell

  dl. Peabody
• 
  Josh Keaton

   Additional Voices (3 episodes, 2015)
• 
  Jeff Bennett

   Additional Voices (1 episode, 2015)
• 
  Dieter Jansen

   Mr. Hobson (2 episodes, 2015)
• 
  Paul Rugg

   Napoleon (1 episode, 2015)
• 
  David Smith

   Mrs. Hughes / ... (2 episodes, 2015)

• 
  Mike Bell

   Additional Voices (2 episodes, 2015)
• 
  Da'Vine Joy Randolph

   Christine (1 episode, 2015)
• 
  Ethan Partington

   Baby Kenny / ... (14 episodes, 2015-2017)
• 
  Laura Prats

  26 episodes, 2015-2016
• 
  Birgitte Velsvik

  Christine (norsk tale)
• 
  Fred Tatasciore

  Additional Voices
• 
  Grey Griffin

  Cleopatra

• 
  Grace Kaufman

  Boogaz
• 
  Tom Kenny

  Blackbeard
• 
  Dee Bradley Baker

  Mozart
• 
  Eric Bauza

  Additional Voices
• 
  Melanie Minichino

  Queen Isabella