- Mark Ruffalo - The Boyfriend
- Ryan Corr - Claire's Friend
- Steve Mouzakis - Teacher
- Michael Berry Jr. - The Bull (voice)
- Nick Farnell - Judith Suit Performer
- Sam Longley - Ira Suit Performer
- Angus Sampson - The Bull Suit Performer
- Mark McCracken - The Bull Additional Suit Performer
- John Leary - Douglas Suit Performer
- Alice Parkinson - KW Suit Performer
- Kalia Prescott - Max's Classmate (uncredited)
- Spike Jonze
- John Martin
- Dave Eggers
- Maurice Sendak
- Natalie Farrey
- Tom Hanks
- Vincent Landay
- Justine Arteta
- Kim Davis-Wagner
- Jon Jashni
- Ren Klyce
- Carter Burwell
- Karen O
- Juan Peralta
Capítulo disponible en las siguientes plataformas: