'L.A. Noir': 'Walking Dead' alums Jeffrey DeMunn and Andrew Rothenberg sign on

According to a very reliable source -- the Twitter account of actor Andrew Rothenberg -- both he and another "Walking Dead" alum  -- Jeffrey DeMunn -- have signed on to roles in Frank Darabont's new TNT pilot, "L.A. Noir."

They'll be joining yet another "TWD" actor -- Jon Bernthal, who plays one of the leads in the drama.

DeMunn, whose "Walking Dead" character was gutted by zombies at the end of Season 2, will play Hal Morrison, a detective heading up an LAPD mob squad. Rothernberg, who was a Season 1 casualty on "The Walking Dead" will guest-star as Eddy Sanderson, a member of the squad, reports TV Guide.

Rothenberg first shared the news on Monday, tweeting, "Get ready Walking Dead fans, I'll be working with Frank Darabont, Jon Bernthal and Jeffrey DeMunn on LA NOIR, a pilot for TNT!"