Cast[]
- Tony Stark/Iron Man as Sheen
- Steve Rogers/Captain America as Jimmy
- Dr. Bruce Banner/Hulk as Giggles the Clown
- Thor as Comander Baker
- Natasha Romanoff/Black Widow as Cindy
- Clint Barton/Hawkeye as Nick
- Sam Wilson/Falcon as Principal Willoughby
- Nick Fury as Santa Claus
- Ultron as King Goobot
- Wanda Maximoff/Scarlet Witch as Libby
- James Rhodes/War Machine as Zixs/Travaltron
- Baron Strucker as Professor Calamitous
- Vision as Jimmy's Dad
- Peggy Carter as Britney
- Heimdall as Officer Tubbs
- Laura Barton as Jimmy's Mom
- Thanos as Meldar Prime
- Erik Selvig as Sheen's Dad
- Ulysses Klaw as Eustace Strych
- Dr. Helen Cho as Elke Elkberg
- Madame B. as Beautiful Gorgeous