|Residence||Iceberg Lake, Castle Lemongrab|
Fat Lemongrab is the fat counterpart clone of Earl of Lemongrab. In "Too Old," Lemongrab invites Princess Bubblegum and Finn to a dinner party at his castle. He has become obese after eating parts of Lemongrab 2. Throughout the dinner, he is abusive towards his clone and uses shock collars to control his subjects. Later, when hearing Lemonhope, a Lemon child who was held prisoner at the time, play his harp, he promptly destroys the instrument. He continues this with Lemonhope and sends him to the dungeon when Princess Bubblegum declares that she will take him to the Candy Kingdom. When Finn and Bubblegum prank him in an attempt to rescue Lemonhope, he sends them to the dungeon as well. Later, when Lemonhope poorly plays Finn's flute, both Lemongrabs are attracted to the sound and Lemongrab 2 releases them. This infuriates Lemongrab and he swallows Lemongrab 2 whole. As Bubblegum and company make their escape, Lemongrab forces all of his subjects to capture them. However, Lemongrab 2 is able to momentarily escape and help aid the escapees leave the earldom before being swallowed again.