Myrna Castillo was born on May 1, 1966, in Manila, Philippines. She was discovered at the age of 15 by talent manager Rey Dela Cruz in Tondo. Her discovery had a serendipitous twist: Dela Cruz was scouting for a replacement for his prized talent, Rio Locsin, who had just left him. Seeing potential in the young Castillo, he began grooming her as a "Cinderella-type" star, a girl from a very poor family who would rise to fame. Her first film was the drama "Ito Ang Lalaki" in 1980, where she starred alongside the legendary Charito Solis.

Myrna Castillo eventually stepped away from the limelight, but her imprint remains. In a decade where the VHS tape was king, her face on a movie poster guaranteed a sold-out theater. She is remembered not with pity (as some former "bomba" stars are), but with respect. She was a professional who navigated the murky waters of 80s Pene with skill, becoming a true icon of Filipino erotic cinema.

These films flourished during the twilight of the Marcos era and the early post-EDSA years.