Big Brother’s Orlaith McAllister is a former Miss Belfast, who was runner up in the Miss Northern Ireland contest in 1999. Orlaith McAllister was having another go at a beauty title when she was selected to represent Belfast at Miss Great Britain in 2006, however she lost out to winner, Danielle Lloyd.In the autumn of 2005 bids for a date with Orlaith were closed having reached 4300 pounds for charity. Orlaith McAllister was romantically linked with Calum Best. After leaving the Big Brother house, Orlaith said that she met Calum Best in the Apartment Bar in Belfast in March 2005 after she broke up with Paul Rodgers.

In January 2006 Orlaith was reported to be close to millionaire presenter of How to be a Property Developer, Gary McCausland. Orlaith McAllister studied business studies and she told the Irish Examiner: “My ambition is to travel and work in International Marketing, ideally in countries like Japan and the US.”

McAllister, who was 26 years old when she entered Big Brother, is a shopaholic, who enjoys boxing and snowboarding. Orlaith had a boob job changing her from a 30a to 30e. Soon after leaving Big Brother, on August 5th 2005 Orlaith was a Page 3 girl in The Sun, she told the paper: “I’ve always wanted to do this. It’s a fantastic honour.” In August 2005 Orlaith became a covergirl of FHM.com.

Orlaith’s idol is Marilyn Monroe.