Guillermo Acosta is the Former Extravagantly Antagonist from Probinsyano who was a misanthropic Bureau of Corrections Director inside the Bilibid prison paid by Tomas Tuazon to sit on the position for punishing Cardo until his last breath.
He replaces Dir. Olarte and joins Jacob Rogelio who kills Him for not saving Him, after his death alongside with Tomas Tuazon. He takes down Ricardo for torturing Tomas in any slights, Joaquin Tuazon sees his destroyed.
He hits Everyone for destroying Him. Hurts the Cook Guy and sees His abuse mental illness, the Supporters in Bilibid can't forgivce His evil deeds. Guillermo abducts Onyok the son of Marcelo, Cardo assails Him with His good deeds to punches back all of them. The old priest passed away to saves Him.
He is extremely sadistic, and morbid compared to Dir. Olarte.