“Now the pig goes wherever he can shine the light of knowledge into the darkness of ignorance.”
In “Gravity Falls- Little Gift Shop of Horrors” Waddles was voiced by Neil deGrasse Tyson. Waddles here is being portrayed by Tyson’s suit and tie holding an atom and the Spaceship of Imagination from the TV-show “Cosmos: a Spacetime Odyssey” within the vastness of space.
(He’s also slightly doing the Neil deGrasse Tyson meme as well)