Salish Matter was not listed as voicing a character in Hoppers in the cast sources I found; the film’s named voices shown there are Piper Curda as Mabel, Bobby Moynihan as King George, and Jon Hamm as Mayor Jerry.

What did turn up is that Salish Matter was reported in casting news for The Angry Birds Movie 3 , not Hoppers.

Quick scoop

  • Hoppers: no verified character credit for Salish Matter in the sources I found.
  • Other film: Salish Matter was announced for The Angry Birds Movie 3.

If you want, I can also help identify whether the rumor came from a fan edit, a social post, or a mistaken cast list.