Guest Stars Jace Norman as Himself Robert Downey Jr. as Himself (Robert Downey, Jr.) Ariana Grande as Herself JoJo Siwa as Herself Dwayne Johnson as Himself Dove Cameron as Herself Riele West Downs as Herself Chris Evans as Himself Camila Cabello as Herself Jules LeBlanc as Herself Ella Anderson as Herself Millie Bobby Brown as Herself Cooper Barnes as Himself Josh Gad as Himself Kristen Bell as Herself Shawn Mendes as Himself Ellen DeGeneres as Herself Caleb McLaughlin as Himself BTS as Themselves Sean Ryan Fox as Himself Michael D. Cohen as Himself David Dobrik as Himself Bill Fagerbakke as Himself Tom Kenny as Himself Simon Cowell as Himself Finn Wolfhard as Himself Sadie Sink as Herself Noah Schnapp as Himself LeBron James as Himself Alia Shelesh as Herself Jeremy Renner as Himself Chris Hemsworth as Himself Asher Angel as Himself (Performer) Scarlett Johansson as Herself Mark Ruffalo as Himself Billie Eilish as Herself Lil Nas X as Himself Christina Koch as Herself
