Mariel Rodriguez (born Maria Erlinda Termulo on August 10, 1984) is a Filipino model and TV host. She used to be a host in Extra Challenge, a show in GMA-7 after being removed and transferred to rival station ABS-CBN, where she was one of three hosts of the Philippine franchise of reality show Big Brother, Pinoy Big Brother along with Toni Gonzaga and Bianca Gonzales.Host Mariel Rodriguez is the first houseguest. She was "trapped" in the House by Big Brother on Day 4 after she brought Jon into the confession room and then the main House area. Contrary to what was presented when she came in, Mariel was in the House with a special mission and she did so with the consents of herself and her manager Boy Abunda. That mission is to be Big Brother's extra eyes and ears and to report which of the celebrity housemates are being true to themselves, as well as learning things about them. She was supposed to leave on Day 42, but because of recent events, Big Brother decided to further extend her stay until "the appointed time." That appointed time was Day 49. A week later, having missed the housemates, she accepted Big Brother's invitation to stay until the finale. Of course, she would have a series of tasks upon her return, her first one happened to be taking over Big Brother's place on Day 57 as the latter would be gone on an "official business." She left the House for the second time on the Day 77.