They have odd traditions including their work-out time, which includes awkward stretching and power walking. The relationship has had limited difficulties on various occasions where Kath's ex-husband Gary Poole showed up and revealed that the marriage (Kath & Kel) was invalid as "he" and Kath were, in fact, still married since the 1970s. Also, Kath being older than Kel has created worry for herself. Kel likes to take over Kath's duties sometimes (as seen in "Inside Out") which annoys her; as she likes to be kept busy and be in charge. Kim Craig, Kel's step-daughter and Kath's daughter, is played by Gina Riley. From the beginning of the series, Kim had an instant dislike of Kel, due to the fact that Kath & Kim had each other all of their lives without a father/husband figure in place. Kim and Kel rarely interact, and when they do, the mood goes "off" and the scene is completely awkward, with one muttering a single word to the other and the other either walking away or trying to give out a grin. Kel is now the focus of Kath's attention which annoys Kim who likes to always be the centre of attention. Kel often tries to express his opinion of Kim to Kath, who does not always agree with what is said. Sharon Strzelecki, played by Magda Szubanski shows respect towards Kel throughout the entire series. She is first introduced to Kel when Kath introduces the two. They don't usually talk. A mutual respect seems to exist between these characters however, with Kel having referred to Sharon as a "good stick". Brett, Kel's step son-in-law and Kel's best man at the wedding, is played by Peter Rowsthorn. Brett is usually the one who gets informed about Kath and Kel's sexual activities. Before Kel met Kath, he had a bad history with women. Every person he came close to marrying was always snatched away from him by longtime friend Sandy Freckle, which raised doubt to his mind before his marriage to Kath. Throughout the series, Kel's storylines include taking over as the lady of the house which annoys Kath, the lead up to his marriage to Kath, entering a midlife crisis and having 'mock angina' leading to a 99% fat free obsession. In "Da Kath & Kim Code", Kel develops a strong dislike of Michael Bublé, as Kath has a crush on him and Kel does not approve. Kel is a Sydney Swans supporter in the Australian Football League, something Kath was not aware of until they were married.