He also had a special role in the 1988 film Boy Negro as the young titular character, in which he won as Best Child Performer in the 7th FAP Awards.

[4] In 1992, he was launched under Viva's action stable through Angelito San Miguel at ang Mga Batang City Jail and since bagged either co-lead or supporting roles in various action films, such as Blue Jeans Gang (1992), Pita (1993) and Brat Pack (1994).

In 1995, he was launched into stardom with the biopic The Grepor Butch Belgica Story, where he portrayed the titular character.

[7] Diaz is married to his non-showbiz wife, Abigail, with whom he has two children: Ashley and Pacquie.

[10] He played a former high school basketball team of FEU-D Baby Tamaraws.