Melvin Underbelly is a halfling who was part of the group of heroes that defeated the Second Overlord.
History
He was originally small for a halfling, but after being convinced by the Wizard that after becoming a hero he could have all the food he wanted, he started eating large amounts of food, causing him to grow taller than a normal halfling and become morbidly obese. He represents the sin of gluttony, and had stolen the Tower Heart to grow pumpkins.
Overlord
He is battled in Melvin's Kitchen and when he is defeated, he pops, causing a thick layer of fat to spurt all over his kitchen.
Overlord: Raising Hell
He is punished by being fed too much food for him to handle and explodes then comes back for the cycle to repeat again. He is used frequently in the Mellow Hills Abyss by the Overlord to destroy defenses. He is ultimately defeated when he rolls at the player, but is dodged and rolls down a hole. Where he must go on a permanent diet of mud and earthworms.
Personality and Traits
He is the king of the halflings and ruler of Mellow Hills. He seems to like singing, implying he may be a bard, though, as Gnarl says, he has a better taste in food than in music. Melvin wears a gold crown and uses a gold fork to attack the player (both of which can be picked up by brown minions after beating Melvin).