After 42 days, he was named Teen Third Big Placer on the show.Six months later, Anderson and screen partner/then-girlfriend, actress Kim Chiu, appeared together on several ABS-CBN shows (including Love Spell and Aalog-Alog) and in the film First Day High.Anderson was born on March 7, 1989 in Subic, Zambales, Philippines.
Gamboa introduced him to his manager, Jhun Reyes, who brought him to ABS-CBN for the first season of Pinoy Big Brother: Teen Edition.
Anderson and the other housemates entered the Big Brother house on April 23, 2006.
He reunited in a movie with Chiu titled 24/7 in Love, Star Magic's ensemble film in view of the agency's 20th year anniversary.
MANILA, Philippines - Singer Sarah Geronimo turned emotional on Thursday as she broke her silence on her failed romance with actor Gerald Anderson. Huwag niyong isisi sa magulang ko ang nangyari dahil 'di niyo alam kung ano ang totoong nangyari," Geronimo told reporters.
He starred with Jessy Mendiola; Chiu had an adjacent time slot with her drama, My Binondo Girl with Xian Lim.
In November 2011 Anderson made another film with Geronimo, Won't Last A Day Without You.He is best known for his lead roles in TV series such as Sana Maulit Muli (2007), My Girl (2008), action dramas, Tayong Dalawa (2009) in which he plays a soldier, and an NBI Agent in Kung Tayo'y Magkakalayo (2010), a mentally challenged young man in Budoy (2011–2012), in the TV adaptation of the iconic comics character "Fredo" in Mars Ravelo's Dyesebel (2014), the Fantasy drama, Nathaniel (2015) and in the Cannes Film Festival Director's Fortnight entry On The Job (2013).Anderson won his first ever Best Actor trophy courtesy of the 24th PMPC Star Awards for Television for an episode of Maalaala Mo Kaya wherein he played a person stricken with Tourette Syndrome.He finished his elementary studies in San Antonio, Texas, and completed high school in General Santos City, Philippines.Anderson was discovered by Joross Gamboa when Gamboa performed in Anderson's hometown.Finally, at 14 years of age, his family moved back to General Santos City.