Things are about to get pretty Grimm for Kate del Castillo…

The 39-year-old Mexican actress and telenovela star has signed to guest star on Grimm, NBC’s dark police procedural that takes place in a world in which characters inspired by Grimms’ Fairy Tales exist.

del Castillo will portray a Portland-based detective searching for a child abductor, and that criminal could very well be the legendary La Llorona.

Grimm fans know monsters play a part in each and every episode. And, La Llorona is expected to give the show a Latin twist, by shining a spotlight on one of Latin America’s most famous legends.

According to legend, a beautiful woman named Maria kills her children by drowning them; in order to be with the man she loves. When he rejects her, she kills herself. Challenged at the gates of heaven as to the whereabouts of her children, she isn’t permitted to enter the afterlife until she finds them. So Maria is forced to wander the earth for all eternity, searching in vain for her drowned offspring, with her constant weeping giving her the name La Llorona.

The episode featuring del Castillo, who had a guest-starring role on CSI: Miami last season, will air on October 26.

Meanwhile, del Castillo is set to star in the films No Good Deed and K-11.