John Aoshima

John Aoshima is a well-known animation director that has directed some episodes of Gravity Falls, and is also well known for his work on American Dad.

Episodes directed by John Aoshima

 * "Unaired pilot"
 * "Tourist Trapped"
 * "The Legend of the Gobblewonker"
 * "Headhunters"
 * "The Hand That Rocks the Mabel"
 * "Irrational Treasure"
 * "Fight Fighters"
 * "Summerween"
 * "Boss Mabel"
 * "Boyz Crazy"
 * "Land Before Swine"
 * "Dreamscaperers"
 * "Gideon Rises"

Trivia

 * The dolphin/human hybrid  hallucination  Aoshima from "The Inconveniencing" is named after John Aoshima. In the episode, Mabel yells "Onwards, Aoshima!" while under the halucinogenic effects of the Smile Dip; that same quote is found during the end credits in the cryptogram.