Simon & Marcy

"Simon & Marcy" is the fourteenth episode of the fifth season of the American animated television series Adventure Time. The episode was written and storyboarded by Cole Sanchez and Rebecca Sugar, from a story by Patrick McHale, Kent Osborne, and Pendleton Ward. It originally aired on Cartoon Network on March 25, 2013, preceded by a re-run of the fourth season episode "I Remember You", and as such was advertised as a half-hour special.

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. In this episode, Marceline the Vampire Queen (voiced by Olivia Olson) reveals to Finn and Jake that 996 years prior to the events of the series, she and the Ice King (voiced by Tom Kenny)—then a human named Simon Petrikov—wandered the post-apocalyptic land after the cataclysmic Mushroom War.

"Simon & Marcy" was the last episode to feature Sugar as a storyboard artist. She left after completing the episode in order to create her own series, Steven Universe. The episode received critical acclaim; many praised its balance of humor and emotion, as well as its exploration of the Ice King's character. The episode was viewed by 2.6 million viewers and received a 0.6 rating among adults between the ages of 18 and 49. The episode was later nominated for a Primetime Emmy Award for Short-format Animation at the 65th Primetime Emmy Awards, but lost to Mickey Mouse episode "Croissant de Triomphe".