Fox's Gotham is reportedly adding another killer to its cast this season with Sons of Anarchy's Tommy Flanagan, according to ComicBook. Flanagan will reportedlyy play a hitman named the Knife, which is described as a new character not from the comic book source material. ComicBook described the character as "one of Gotham City’s most dangerous denizens," who will "sit with you, laugh with you, and then cut your throat."
Flanagan tweeted about his involvement in the show in October, but no details about his role were known until now. The actor is no strange to roles in cinematic roles based on comic books, having appeared in Sin City and Aliens Vs. Predator.
Although described as a new character, there was a similiarly described villain named the Knife who appeared in 1944's Feature Comics #78 published by Quality Comics. DC later acquired the rights to many of the characters published by Quality including Plastic Man and Blackhawk, but the Knife has never appeared in any DC publications.
The Knife will reportedly debut in Gotham season 2 episode 10. Gotham airs Monday nights on Fox.