|Sister Mary John|
|Portrayed by||Aiko Milendez|
Sister Mary John is the main antagonist of "Ang Madre" from Shake Rattle and Roll 4.
Sister Mary John poses as a nun in the slum area's clinic.
Before Sister Mary John is a manananggal, She was cursed by an old woman into a manananggal.
In manila, she met Apol. They where married and Apol became a manananggal.
During their honeymoon, Sister Mary John wanted to build a clinic for the slums in a slum area. So they build a clinic and their job is to drink blood of the person.