Alexander Robert Hirsch is an American animator, writer, producer, and voice actor. He is the creator of the Disney Channel series Gravity Falls, for which he provided the voices of Grunkle Stan, Soos, and Bill Cipher, among others. He also earned BAFTA and Annie Awards for the series. In 2016, Hirsch co-authored Gravity Falls: Journal 3 which debuted as a No. 1 New York Times Best Seller and remained on The New York Times Best Seller list for forty-seven weeks. In 2018, Hirsch wrote Gravity Falls: Lost Legends which also appeared on The New York Times Best Seller list.

Gravity Falls is an American mystery comedy animated television series created by Alex Hirsch for Disney Channel and Disney XD. The series follows the adventures of Dipper Pines and his twin sister Mabel, who are sent to spend the summer with their great-uncle Stan (Hirsch) in Gravity Falls, Oregon, a mysterious town full of paranormal incidents and supernatural creatures. The kids help Stan run the "Mystery Shack", the tourist trap that he owns, while also investigating the local mysteries.