On the second season of Pinoy Big Brother, there were a total of 15 official housemates and 3 sub-official housemates who entered the house on designated dates. Aside from the housemates, three houseguests entered the house. The first houseguest is Tina Semolič from the Slovenian version of Big Brother, as part of the Big Brother Swap between Pinoy Big Brother and Slovenian Big Brother. The second houseguest is Hanna Eunice Rodriquez, as the winner of the Globe Promotion of being a housemate for a week. The third houseguest is Uma Khouny, housemate from the previous season of Pinoy Big Brother and 4th Big Placer.
On Day 1, only six housemates entered the house. The next six housemates entered the house,one by one, on Days 7 to 12. The final four housemates entered the house on Day 14. The number of housemates thus reached 16, although only 14 were promised in the pre-season teasers. The last batch of housemates were put up for public voting. Two of the final four housemates were eventually voted to stay in the house, thus completing the list of 14 housemates. Due to an unprecedented Forced Eviction of Maricris, an additional housemate entered the house. Instead of just one housemate, Big Brother decided to let two mothers enter, deviating from the young group of housemates that were already in the house. By the end of the week, one of the two mothers was chosen by the housemates to stay in the house. Conversely, the other housemate was evicted from the house. All in all, there were 18 housemates for this season, 15 of which were official housemates and 3 sub-official housemates.
The housemates are presented in the article in order of their entrance.
Ezekiel Joshua "Zeke" Dimaguila (born: November 2, 1985 in Australia) is a 21-year-old online gamer from Australia. Prior to his entry to the house, he is said to have played the World of Warcraft for up to 15 hours straight. He is known for his frank attitude towards his housemates especially with the girl housemates. He is also a "turntablism" aficionado and idolizes DJ Q-Bert, for being the greatest "scratcher" in the world. Ezekiel was first evicted on Day 35, but returned to the House on Day 78 and was re-evicted after a week because of low votes on Day 86.
Wendy Manalus Valdez (born: June 2, 1982 in Manila) is a 25-year-old commercial model from Navotas. Modeling under Mercator models, she was a student from Far Eastern University and St. James Academy in Malabon City. and previously a Binibining Pilipinas-Tourism titleholder, she lived in a squatters' area prior to her stay in the house. As a commercial model, she has been seen in commercials such as those of the Unilever brand Close-Up and food company Jollibee. She has also appeared in music videos such as "Binibini" of the reggae group Brownman Revival. She was also a model on a hit game show Kapamilya, Deal or No Deal. Wendy also made it to the Final 38 Star Dreamers of Pinoy Dream Academy, but failed to make it as a scholar. She was earlier launched as a part of the girl group Dream Girls along with other female star dreamers, In the house, she found Bruce Quebral as her best buddy. She is indeed the most controversial among all the housemates. Her behavior and actions inside the house has gained her supporters as well as detractors; she is even a subject of allegations of favoritism against the show due to her background before living in the House. Wendy was first evicted on Day 70, but returned to the House on Day 78. On Day 126, she was proclaimed the third placer of the second season.