Three former contestants from The Biggest Loser Australia have returned to the game. Brenda Hunt, Lydia Hantke and Rebekah Gilchrist all won the right to re-enter the weight loss reality television show in last night's episode. Hunt and Gilchrist were both eliminated weeks ago, while Lydia left The Biggest Loser compound last week. They then all joined a secret training group run by Shannan Ponton, beating other past contestants such as Luke Stephens and Hamish Elliott to get the chance to weigh in again. Former red team members Hunt and Hantke both rejoined the game after being the most successful weight losers that week, leaving Gilchrist, Lisa Ritherdon and Simon Hurley to face the vote. Housemates Margie Cummins, Graham Pilson, Alex Zorzi, Michelle Cortesao and Kasey Cheesman (more)...