LeVar first appeared in "A Brown Thanksgiving", where he cheated on his wife with Auntie Momma. He got his comeuppance, when Cleveland told him that "she" was really a trans-gendered he. In "You're the Best Man, Cleveland Brown", LeVar admittedly references to a 500-woman long list of girls he's cheated on Evelyn with. Cleveland couldn't resist adding on "and one guy", reminding him of Auntie Momma.
In "Murray Christmas", it turned out that every Christmas during Cleveland's childhood, LeVar would box with him, in a fight over every one of his presents. Cleveland would always lose and would even have a black eye in most of their pictures. Evelyn did nothing to stop them, as she apparently never even heard of this, when it was happening.
In "When a Freight Train Loves his Cookie", LeVar broke Evelyn's heart, after missing their anniversary, spending it with another girl. Evelyn would be in tears, but would later leave him for George Clinton. LeVar teamed up with Cleveland and the guys, convincing them to help him win her back, which he achieved via musical number "I'm Feelin' Ookie, Cookie". During the number, LeVar would dump a countless number of girlfriends over the phone, including a mother and daughter, all of which he was having sex with, while married to Evelyn. This would be one of the only times, LeVar ever felt guilty and made up for his mistake.
- In "You're the Best Man, Cleveland Brown", It's suggested that LeVar has numerous biological sons and daughters, all around the world, who he tends to even less than Cleveland.
- In "A Rodent Like This", Cleveland had a flashback to his childhood, where LeVar made it a rule that he could only have a pet if he beat it in a fight. It then showed a cutaway of a rottweiler tearing apart young Cleveland in a public fighting arena.
- In "Brownsized", Cleveland mentions LeVar locking him in a slaughterhouse, giving him nothing, but a pen knife, and telling him not to leave, until he came back out with steaks.