After Jeremy Davies (Lost) and Chris Diamantopoulos (The Three Stooges Film), NBC's horror drama Hannibal has welcome another major addition in its cast.

Entertainment Weekly has revealed that Hannibal, which stars Hugh Dancy (as Will Graham) and Mads Mikkelsen (as Dr. Hannibal Lecter) will be joined by Michael Pitt of Boardwalk Empire on a major role.

The report said:

Michael Pitt is returning to TV in a major role on NBC's dark thriller Hannibal.

Pitt is playing the character of Mason Verger, an unstable wealthy patient of Dr. Hannibal Lecter (Mads Mikkelsen) who begins a dangerous cat-and-mouse game with the deadly serial killer.

The Mason Verger role will be introduced late in the upcoming second season, which finds FBI profiler Will Graham (Hugh Dancy) in prison, falsely convicted for Lecter's crimes, while the doctor advises the agency on cases. Gary Oldman previously played an older version of Mason Verger in the 2001 Hannibal film, which is based on Thomas Harris' Hannibal novel. NBC's Hannibal timeline precedes the events in the film and is also set before the events in Thomas' Red Dragon so this is Mason how we've never seen him before (a cast description for the role compared him to the way Andrew Scott played Moriarty on Sherlock). Recently, Hannibal also cast Verger's sister Margo, who is played by Katharine Isabelle (Being Human).

Pitt's Boardwalk Empire character Jimmy Darmody was shockingly killed in the HBO drama's second season. Aside from Boardwalk Empire, Pitt is also recognized for his role as in Bernardo Bertolucci's The Dreamers.

Aside from Pitt, Gillian Anderson will also be back as Hannibal's shrink and Pitt's twin sister Margot.

Meanwhile, Hannibal has released a new promotional entitled "A Warning." Based on the video, it is safe to say that things could get gorier and relationship between Hannibal and Will will be a lot worse. Hannibal will be back on TV on February 28.

Watch the video