Sweet 16 Marsh realizes he has a hard time dealing with death once Cassandra's dad passes away. Details Casts Galleries Posters Season Lists Title Sweet 16 Genres Comedy Animation Release Date 2013-11-30 Episode Runtime 00 Hours 10 Minutes Season Number 1 Episode Number 12 Production Companies ADHD Studios, Friends Night, Fragical Productions Moon Unit Zappa... Tracy (voice)... Nathan Barnatt... Blackstein (voice)... Vincent Kartheiser... Marsh Merriwether (voice)... T.J. Miller... Brad (voice)... Mandy Moore... Cassandra (voice)... Zosia Mamet... Amber (voice)... Jake Johnson... Mr. Structor (voice)... Dino Stamatopoulos... Mr. Merriwether (voice)... Original Size (1920x1080) Original Size (1280x720) Original Size (960x1440) Original Size (1000x1500) Original Size (500x750) Season 1 12 Episode(s) 2013-07-21