The Biggest Loser
Bob Harper and Jillian Michaels were the original personal trainers of the show when the show got on the air. Since then trainers such as Cara Castruonova, Jessie Pavelka, Kim Lyons, Brett Hoebel and Anna Kournikova have also trained on the show. The current trainers are Dolvett Quince and Jennifer Widerstrom.