J.K. Simmons

Dipper's secret journal pages lead him and the gang to the author's hidden bunker where they find themselves face-to-face with a mysterious figure from Gravity Falls' lore.

A new threat leads Mabel to venture into the enchanted realm of the unicorns; Dipper learns something new about Bill Cipher.

Dipper finds an unlikely friend to join him with his newest obsession, a board game called Dungeons, Dungeons & More Dungeons.

Mabel decides to plan for her and Dipper's 13th birthday party. Meanwhile, Dipper and Ford venture below the town to find its most shocking secret.

Trapped in the apocalypse and menaced by villains new and old, Dipper finds himself in a race against time.