Simon & Marcy "everyone [working on the series] was pitching in to make this one special". The episode features the voice of Ava Acres, who portrays the young version of Marceline. Acres had previously appeared in the third season episode "Memory of a Memory". As mentioned above, the episode makes notable use of the 1982 song "Where Everybody Knows Your Name" by Gary Portnoy—better known as the theme to the sitcom "Cheers". According to Sugar's father, Rob, on his official YouTube channel, the use of the song started merely as a placeholder. However, as the episode developed, Sugar decided to keep it in
Elliott Portnoy Elliott Portnoy Elliott I. Portnoy (born November 1, 1965) is an American attorney and the Global chief executive officer of Dentons—a law firm that launched March 28, 2013 with the combination of US/UKMEA firm SNR Denton, Canada's Fraser Milner Casgrain and Europe's Salans, and is now the largest law firm in the world. Portnoy was previously the chief executive of SNR Denton, a combination between Sonnenschein Nath & Rosenthal LLP and Denton Wilde Sapte. At 41 when he took over as chairman of Sonnenschein, he was the youngest partner to serve in the role and the first outside Chicago, where