Kate Louise Lawler was born on May 7, 1980 in Beckenham, London. She was the first female winner of Big Brother UK, winning the 2002 third British season of Big Brother. Since leaving Big Brother, Lawler has worked as a television presenter and personality, and as a disc jockey.

In September 2002, kate became a DJ on Capital FM, a position she held until December 2003. Lawler co-presented the Channel 4 breakfast TV show RI:SE from February 2003 until it was axed in December of that year. In 2005, she was one of the competitors in the ITV show Celebrity Wrestling, competing under the name The Brawler. She helped her team, the Warriors, win the team championship, but was eliminated in the semi-finals of the individual competition by Leilani Dowding.

Lawler has modelled clothing for Arsenal FC, of which she is an avid supporter of both them and manchester united.

Kate wrote a twice-weekly Big Brother 7 column for The Sun online for the duration of the series. Early in the series Lawler spoke about her opinion and feelings towards BB7, branding the housemates "weird" and "fame-hungry".

Although Lawler previously denied rumours that she would participate, on August 14, 2006, Lawler entered Love Island 2 as a new arrival. Fellow contestant Sophie Anderton was not impressed as she had had it written into her contract for the show that Lawler, along with three other unnamed celebrities, would not also appear. Sophie had been rude to Kate at a party in London, to which Kate retaliated; this had caused Sophie's animosity towards Kate. However once on Love Island Sophie and Kate made up, and became friendly. Lawler came third top female in the final of Love Island.

In 2006, she appeared on Brainiac: Science Abuse, being electrocuted in an electric chair. She was a presenter on Playdate, a late-night dating programme on ITV2.

Kate currently works as a club disc jockey in Europe and Japan, and is monthly resident at Manchester club Sankeys, and an occasional columnist for the UK-based celebrity gossip magazines OK! and New. As with many reality tv celebrities, Lawler has managed to retain a degree of media exposure including paparazzi shots of her at the beach and elsewhere and appearing in men's magazines wearing minimal clothing in photo features. On July 24, 2006 Ann Summers announced that Lawler would be the company's new model in its lingerie advertisements.

On January 26, 2007 Kate was banned from driving for six months after being caught speeding at 92mph in a 60 zone in Ugley, Essex. Lawler received a ?1,100 fine and three points, pushing her over the 12-point limit resulting in the ban.