Adventure Time: Fionna and Cake, a spinoff of the popular animated series Adventure Time, has premiered on Max. Unlike the original show, this spinoff targets older kids and has a TV-14 rating. The series features Madeleine Martin as Fionna the Human and Roz Ryan as Cake the Cat, with other notable cast members. Adventure Time: Fionna and Cake consists of a total of 10 episodes on Max. The first two episodes premiered on August 31, 2023, with two new episodes being released each week until the series concludes on Thursday, September 28, 20…