'Gotham': Meet the Scary, Unstoppable Villain Behind the Season's Final Episodes

"The Ogre is the GCPD's dirty little secret."

There's a new bad guy in Gotham — but the Ogre might turn out to be far more trouble than any of the criminals that Jim Gordon has dealt with in the Fox series so far, as this new teaser for the season's final episodes reveals.

The Ogre, played by Milo Ventimiglia, will make his debut in "Beasts of Prey," the April 13 episode of the show, and drive the series as it heads toward its finale. As the video explains, he's a serial killer who has managed to avoid capture by targeting the loved ones of cops who've investigated him in the past, but that's not enough to scare off Gordon (Ben McKenzie).

"This extremely dangerous man will do something terrible to someone that Jim loves — and there's going to be hell to pay," McKenzie teases. But with Morena Baccarin, who plays Gordon's current love interest Leslie Thompkins, reportedly on board for the show's second season, that doesn't necessarily mean that a death is in the future — or, at least, not Leslie's death.

Gotham returns with new episodes April 13 on Fox.