Surprise PartyBackdropUncle GrandpaPosterUncle GrandpaSurprise PartySeason 5, Episode 4GalleryMr. Gus and Belly Bag are throwing a surprise party for Pizza Steve, as long as Uncle Grandpa doesn't spoil their surprise.CastPeter BrowngardtUncle Grandpa (voice)Eric BauzaBelly Bag / Hot Dog Person (voice)Kevin Michael RichardsonMr. Gus (voice)
