

In this episode, Jake begins acting strangely following a memorial service for Prismo. The series follows the adventures of Finn (voiced by Jeremy Shada), a human boy, and his best friend and adoptive brother Jake (voiced by John DiMaggio), a dog with magical powers to change shape and grow and shrink at will.

It guest stars both Kumail Nanjiani as Prismo and Ron Perlman as The Lich. The episode debuted on November 25, 2014, the second episode to air as part of Cartoon Network's "Corn-Ooo-Copia", a week of new Adventure Time episodes. The episode was written and storyboarded by Jesse Moynihan, from an outline by Pendleton Ward, Adam Muto, Kent Osborne, and Jack Pendarvis.

" Is That You?" is the nineteenth episode of the sixth season of the American animated television series Adventure Time.
