Neil deGrasse Tyson (born October 5, 1958) is an astrophysicist and director of the American Museum of Natural History's Hayden Planetarium. He became a well-known science personality after being among the group of scientists that re-classified Pluto as a dwarf planet. He ended up citing the Disney character, who was created the same year Pluto was discovered, as being a significant contributor to the public attachment to the planet and the backlash that ensued after the reclassification became official.
In 2014, he guest starred on Gravity Falls as the voice of an intelligence enhanced Waddles. He voices an animated verision of himself in Future-Worm!. He was mentioned in an episode of MECH-X4 and the BUNK'D episode Bad Dog!.