S2e1 sure grunkle stan
Grunkle Stan Pines is Dipper and Mabel Pines' great uncle, Ford Pines's brother, the original owner of the Mystery Shack, a minor character of the IG-88's Adventures Series, and one of the main characters of the IG-88 WWF / WWE Chronicles and the IG-86's Adventures Series. He invented IG-88, IG-86, IG-80, IG-82, IG-72, and IG-83 along with his brother Ford Pines, Old Man McGucket, Tony Stark / Iron Man, and Bruce Banner / Hulk. He is voiced by Alex Hirsch.