Which series worked on by Aaron Springer ran from June 15, 2012 to February 15, 2016?
Billy Dilley's Super-Duper Subterranean Summer: Billy Dilley's Super-Duper Subterranean Summer (also known as Billy Dilley) is an American animated television series created and executive-produced by Aaron Springer, an animation veteran whose extensive credits include working on "Dexter's Laboratory", "SpongeBob SquarePants", "Samurai Jack", "The Grim Adventures of Billy & Mandy", "Gravity Falls", "Wander Over Yonder", and the current run of "Mickey Mouse" shorts. Gravity Falls: Gravity Falls is an American animated television series produced by Disney Television Animation originally for Disney Channel (and then later for Disney XD) from June 15, 2012 to February 15, 2016.
Gravity Falls