Serpina (Babaeng Anakonda), the princess of the snakes and Valentina's half-sister, was played by Katrina Halili in the 2009 TV series. Halili previously played Black Darna in 2005. Serpina is Kobra's daughter with Roma (Babaeng Impakta). Unlike Valentina, she is not a Gorgon but a hybrid creature who looks like a human but can transform into a snake. She also uses a powerful staff as her weapon. She even has a psychic rapport with Valentina that allows them to communicate telepathically.