Seasons 1, 2, 3 and 4 Edit
Kev is dyslexic and grew up in foster care. When Kev and Veronica take in a foster daughter, Kev takes it upon himself to make her feel as comfortable as possible. However, she runs away and so Kev and Veronica are no longer allowed to be foster parents.
Kev has inherited the bar from its previous owner, Stan. (Stan's son is an effeminate homosexual man who was estranged from homophobic Stan.) To keep his bar afloat, Kev brings Mickey into the business. When Mickey steals from the bar, Kev brandishes and accidentally fires a shotgun. Veronica tells Kev to get rid of the weapon.
Season 5 Edit
Kev spends more time with his daughters and wishes to learn to be a better parent. He goes to internet chatrooms, watches Svetlana breastfeeding and shaves off all of his hair after his babies keep pulling on it. Veronica is appalled by Kev's actions and puts him in the spare room. Kevin cheats on Veronica with co-eds. When they try to reconcile their relationship, further problems ensue.
Seasons 6 and 7 Edit
Kev is in a three way relationship with Svetlana and Veronica.