My favourite guest appearance in Gravity Falls may surprise you. See, recently I've been watching Gravity Falls and it's easily my favourite show to this day. And even this channel's name pays an homage to Gravity Falls itself. But there is one guest appearance in the show that I still find amazing and surprises me to this day. If any of you remember the episode from season 2 titled Little Giftshop of Horrors, you'll remember one memorable part of the episode where Waddles, everyone's favourite pick companion, eats some go that makes him really smart. But what's really funny is they have Neil deGress Titan, voice in smart waddles. Greetings friends, it is I, Waddles for big. And to this day it's still one of my favourite guest appearance from Gravity Falls. But my biggest question to you is who's your favourite Gravity Falls character?