A real sharp antagonist is coming to Gotham.

Tommy Flanagan (Revenge, Sons of Anarchy) will guest-star in Episode 10 as The Knife, one of the city’s most dangerous denizens, TVLine has confirmed.

The Knife is described as having a charming, stylish shell and good humor, but underneath it, he’s a remorseless hitman whose skills are at the service of the highest bidder.  He will sit with you, laugh with you — and then cut your throat.

Ready for more of today’s newsy nuggets? Well…

*  TBS has ordered to series the dark comedy Search Party, starring Arrested Development alumna Alia Shawkat. The show follows a group of four self-absorbed 20-somethings who come together when a former college acquaintance mysteriously disappears.

* TMZ Sports, focusing on the celebrity and lifestyles of past and present athletes, will debut on FS1 on Nov. 9 at 12 am ET.

* Here’s another TV character you don’t want to piss off: AMC has unveiled a two-minute fight sequence from its upcoming martial arts drama Into the Badlands, featuring lethal beauty The Widow (played by Emily Beecham). The series premieres Nov. 15 at 10/9c.