"Wake Up" and "Escape from the Citadel" are the first two episodes of the sixth season of the American animated television series Adventure Time. "Wake Up" was written and storyboarded by Andy Ristaino and Cole Sanchez, whereas "Escape from the Citadel" was storyboarded by Tom Herpich and Steve Wolfhard. Both episodes' stories were developed by Kent Osborne, Pendleton Ward, Jack Pendarvis, and Adam Muto. The two episodes originally aired on Cartoon Network on April 21, 2014. The episodes guest star Kumail Nanjiani as Prismo, M. Emmet Walsh as the Cosmic Owl, Miguel Ferrer as Death, Ron Perlman as the Lich, and Stephen Root as Martin.