Discovery & Stardom:
Family - Gerald Jr. was born to Gerald Randy Anderson, Sr. an American and mother, Evangeline Opsima, a Filipina. Gerald also has a younger brother, Kenneth, and two older sisters from his mother's first marriage, Jen and Darling. When he was three years old, he and his family moved to San Antonio, Texas, and then to Missouri when he was six. Finally, at 14 years of age, his family moved back to General Santos City, in the Philippines, which he now calls home.
Celebrity Life - He was discovered by Joross Gamboa while the latter was performing in General Santos City, where Gerald is based. Joross introduced him to his manager, Jun Reyes, who then brought him to ABS-CBN to join PBB Teen Edition.
He rose to fame when he placed third overall in the first Pinoy Big Brother: Teen Edition with 293,234 votes. He was billed as the Amboy Hottie from General Santos City.
His popularity with viewers and an interest in show business led to acting assignments with fellow Pinoy Big Brother Female housemate Kim Chiu, who became his acting love team partner after Pinoy Big Brother: Teen Edition, their love team was named Kimerald by their fans well before they even left the Big Brother house. Their biggest fan clubs at the moment are Kimerald BAOs (or Buangs, Adiks and Oopsies) and Kimerald World, alone Gerald has a fan club called Geraldnaticx.
Since the end of the Pinoy Big Brother: Teen Edition, Anderson along with his love team partner have appeared together in several shows on the ABS-CBN network (Aalog-Alog ,Your Song (TV series), Gokada Go!, and Love Spell), and have been tapped to do several TV ads and product endorsements. Gerald also has worked on a primetime television series entitled Sana Maulit Muli, where he was once again partnered with Kim, which started on January 8, 2007. The series ended April 20, 2007 taking the country by storm, receiving a very high Nationwide Rating and besting all other primetime programs. Gerald's next projects are: Love Spell titled Cindy-Rella which started showing on October 14,2007, and is set to last for 13 weeks, a Sineserye Presents:Bagets and also a teleserye, Nagai-Aida, set to begin sometime in the first half of next year all starring with Kim Chiu.
Gerald along with Kim Chiu has co-starred in two movies, First Day High which premiered on September 27, 2006 and a year later their first solo movie I've Fallen For You directed by Lino Cayetano which premiered nationwide on September 26, 2007.
Already a rising young actor he is also a dancer with already two successful dance albums out.