• 
  Rhys Darby

  Ranger Joey / dl. Laroux
• 
  Elvis Costello

   Pete's Dad (1 episode, 2017)
• 
  Diana Krall

   Pete's Mom (1 episode, 2017)
• 
  Juliet Donenfeld

   Sally Squirrel (1 episode, 2017)
• 
  Don Was

  3 episodes, 2017
• 
  Phill Jupitus

  3 episodes, 2017
• 
  Alyson Stoner

  3 episodes, 2017
• 
  KT Tunstall

  3 episodes, 2017

• 
  Atticus Shaffer

  3 episodes, 2017
• 
  Django Marsh

  3 episodes, 2017
• 
  Jacob Tremblay

  3 episodes, 2017
• 
  Indie Nameth

  3 episodes, 2017
• 
  Evan Agos

  3 episodes, 2017
• 
  Felix Avitia

  4 episodes, 2018
• 
  Jessica Biel

  Bonnie Burrow

• 
  Jeff 'Swampy' Marsh

  Pete's Dad
• 
  Pamela Adlon

  Grumpy's Mom
• 
  Phil LaMarr

  Burton Burrow
• 
  Camryn Jones

  Boo Burrow
• 
  Tom Freund

  Gustavo's Papi