Let's make this birthday one to remember.

39 years old (Born on October 21, 1985)

Happy birthday to the one and only Rainier Castillo, whose killer smile has charmed audiences from Manila to Mindanao! Your unforgettable grin first stole hearts on StarStruck, and since then you've continued lighting up screens with your charisma. Whether it's drama or comedy, you always deliver performances that leave us smiling too.

Recently, we've loved seeing your career flourish even more—proving once again you're not just a pretty face but an actor who truly shines in every role. May this year bring you as much joy as you've given fans through all these memorable moments. Keep flashing that legendary "killer smile"!