[img]null[/img]Jim is a happy-go-lucky suburban father. Much like his real-life counterpart, Jim's character is a fan of blues music, as well as the Chicago Bears, Chicago Cubs, Chicago Bulls, and Chicago Blackhawks. Together with his wife Cheryl, they have three children, daughters Ruby and Gracie and son Kyle. In the seventh season they become parents of twin boys Gordon and Jonathan.

Jim often finds himself in difficult situations, because his slacker sensibilities cause him to search for alternative ways to get things done with less effort. While Cheryl's brother Andy is Jim's best friend/brother-in-law, her sister Dana frequently teams up with Cheryl against Jim. He also prefers to lie to Cheryl and Dana to do his own activities but they end up backfiring on him. He hates losing to women, especially if Cheryl or Dana find out. He doesn't like people interrupting him when he talks, so he speaks over them to shut them up. Jim often makes an example of Andy, who for most of the series does not have a steady girlfriend. Dana and Jim argue constantly, but Dana flirts with Jim when she's drunk, discovering after one such event that she respects Jim as a loving father despite his flaws.