Robert Sean Leonard (born February 28, 1969) is an award-winning American actor.
He has regularly starred in Broadway and off-Broadway productions, but is most known for his roles on House and in Dead Poets Society.
Twins Dipper and Mabel Pines are sent to spend the summer with their great-uncle, Grunkle Stan, in the mysterious town of Gravity Falls, Oregon. Grunkle Stan has the kids help him run The Mystery Shack, the tourist trap that he owns.
