The Magical Reveal happened last October 4, 2009 as Pinoy Big Brother Double Up premiered its show. The hosts of PBB Double Up were Toni Gonzaga, Mariel Rodriguez, and Bianca Gonzales.

The 14 housemates were chosen from 57,824 applicants and were introduced that night.

Princess – the Sassy Vamp ng Cebu
Tom – the Romantic Stud ng Samar
Delio – the Simpatikong Kusinero ng Batangas
Paul Jake – the Negosyante Prince ng Cebu
Jason – the Boy Astig ng Mindoro
Melissa – the Inday Kengkay ng Gen San
Yuri – the Multilingual Hottie ng Japan
Carol – the Conservative Pharmacist ng Tondo
Mariel – the Struggling Mom ng Davao
Yhel – the Young Widow ng Pampanga
Toffi – the Basket Bolero ng Rizal, and his twin brother Kenny, the Joker Jock ng Rizal
JP – the Jetsetter Dad ng Quezon City,and his twin brother JM, the Delightful Dad ng Quezon City.

PBB Double UP Edition is expected to have different challenges to be accomplished by the 14 housemates. It was also revealed that there will be two houses where housemates with a twin will go separately to the different houses and they should not talk about it with other housemates.