Pearce competed for England in the World Pentathlon Championships at the age of 15. She had competed as a professional heptathlete in the 2004 European Heptathlon Finals. Pearce has also represented Great Britain as a bobsleigher in the 2005 World Bobsleigh Championships.
In 2010, Pearce was the competitor interviewer in the programme The World's Strongest Man 2010, filmed at Wembley Arena, in London and shown on Challenge TV.
Pearce has earned a first class honours degree in Sports Science and a masters degree in Physiology and Nutrition from Loughborough University. She has modelled in advertisements for Nike, Reebok, Adidas, Ron Hill and Fitness-Mad. She has also modelled for photographer Michael Palmer. Following her departure from Gladiators, she did a photoshoot for Fight Factory magazine.
From August 2013 Caroline is the presenter of BT Sports weekly magazine show, UFC: Beyond The Octagon, along with journalist Gareth A Davies, with special guests from the world of UFC, the show brings reviews and news from everything UFC with pre- and post-fight events with reviews and analysis of the fights, and also with special features, exclusive interviews with UFC fighters and personnel.