PBB as a three-letter abbreviation can refer to:

Kim Chiu (born Kimberly Sue Yap Chiu on April 19, 1990 in Tacloban/ Chinese name: Zhang Jinzhu, Chinese characters (traditional): 張金珠), is a Filipino-Chinese actress. She lived in Cebu City before she went to Manila for Pinoy Big Brother. Chiu was the first winner of Pinoy Big Brother: Teen Edition and is currently part of ABS-CBN's Star Magic contract artists. She is also a recording artist, having launched her only album entitled 'Gwa Ai Di'.

Kim Chiu launched her career by winning the reality TV series Pinoy Big Brother: Teen Edition. Chiu and the rest of the housemates entered the Big Brother house on April 23, 2006. After 42 days in the Big Brother house, she was named the Teen Big Winner with 626,562 votes (41.4% of the total votes) at the Cultural Center of the Philippines Complex in Pasay City. She was the only housemate who was never nominated for eviction.

In the six months following after her winning, Chiu together with on-screen partner, Gerald Anderson, appeared together in several ABS-CBN network shows, and appeared in the film, First Day High. Chiu and Anderson also appeared in Love Spell and Aalog-Alog.

Rodel Luis Nacianceno (born on November 1, 1981), better known by his stage name, Coco Martin, is a critically acclaimed Gawad Urian Award-winning Filipino actor. He became famous for starring in many independent films, and was dubbed the Prince of Philippine Independent Films. He is also known for his portrayal of Ramon Lecumberri in the critically acclaimed television series, Tayong Dalawa

Coco lives with his 70 year old grandmother who raised him. Coco has five siblings, three from both parents and two step siblings on his father's side.

Martin started out in ABS-CBN's talent agency, Star Magic, as part of the Star Circle Batch 9. He made his first cameo film appearance in the 2001 film Luv Txt where he was credited under his real name, Rodel Nacianceno followed by many independent films.

Since then he has appeared in several TV advertisements before breaking back into showbiz with his lead debut independent film Masahista for which he was awarded the Young Critics Circle Best Actor Award in 2006. He also starred in Kaleldo in 2006.

Ivan Anthony Dorschner (born on September 21, 1990, in Los Angeles, California) is a Filipino-American actor, television host, and model who was a former housemate of the Philippine reality television show Pinoy Big Brother: Teen Clash 2010.

Dorschner is currently under contract to Star Magic, ABS-CBN's home based talent agency.

Ivan Anthony Dorschner was born in Los Angeles to a German-Irish father and a Filipina mother. He has two paternal half-siblings from his dad’s previous marriage and a younger brother. Ivan was raised in California, every year during the summer, he often goes to the Philippines for at least two weeks for a vacation. During his childhood, he has been a Boy Scout and got the highest rank, Eagle Scout. He studied at the College of the Canyons with International Diplomacy studies (shifted from Bio-Science), but put on hold until his third year when he decided to stay in the Philippines..

Dorschner modeled and did photoshoots not only in the US, but also in the Philippines. Later on then became a ramp model for a clothing line known as Folded and Hung, was guested in the show Us Girls, was brought to the stage in Showtime, and even played HepHepHooray in one Philippine’s most known TV Program, Wowowee. The duration of his visit that time, never did he realize that he’d be in a reality show called Pinoy Big Brother: Teen Clash 2010. Dorschner stayed in the house for 3 1/2 months with the help of his fans voting him to stay in, emerging fifth among the six finalists topped by Fil-Aussie James Reid who garnered 19.75 percent of text votes.

Samuelle Lynne Acosta "Sam" Pinto (born December 11, 1989) is a Filipina actress and commercial model.

Sam started out as a print-ad and TV commercial model. At the age of 10, she got her first modelling job, appearing in the posters for Coca-Cola. Other TV and print-ad credits include Sunsilk, SMART, Voice combo sandwich, Colgate, Palmolive, and Mc Donald's. She was also an endorser for a clothing brand, BAYO.

She became known to people after being a part of the reality series, Pinoy Big Brother: Double Up. Originally a House B housemate, she moved to House A after a week of her stay inside Big Brother's House. She has been saved by her fans through voting on several eviction nights before finally getting the boot on the night of January 9, 2010.

Before her stint on the reality show though, she was seen acting with Mark Herras on a "Maynila" episode in GMA Network. Sam was a finalist in the Myx VJ Search 2008. Her first regular appearance was in a television show called Midnight DJ, opposite Oyo Boy Sotto. She joined the show as a cast regular in the middle of season 4. She played Max, the Midnight DJ crew's resident psychic. Her character was first introduced in the "Oink! Oink!" episode.