• 
  Vincent Kartheiser

  Marsh Merriwether
• 
  T.J. Miller

  Brad
• 
  Nathan Barnatt

  Blackstein
• 
  Mandy Moore

  Cassandra
• 
  Natasha Leggero

  Rachel Lewis
• 
  Jay Johnston

   Officer Dumphy (5 episodes, 2013)
• 
  Zosia Mamet

  Amber
• 
  Dino Stamatopoulos

  Mr. Merriwether

• 
  Moon Unit Zappa

  Tracy
• 
  Jake Johnson

  Mr. Structor
• 
  Charley Damski

  Student
• 
  Maya Erskine

  Student
• 
  Mark Rivers

  Charlie Lewis
• 
  Rachel Butera

  Brad's Mom
• 
  Sally Kellerman

  Dolores Barren

• 
  Milo Silverstein

  Wally
• 
  Ray Wise

  Seymour Barren
• 
  Jackie Hoffman

  Tamar
• 
  Megan Adams

  Student
• 
  Ike Barinholtz

  Cyber Bully