With Dermot Mulroney and Michael Cudlitz already on board, TNT announced it has added more star power to its Mystery Movie Night production of “Silent Witness,” according to The Hollywood Reporter.

Actress Anne Heche and multiple Emmy winner Judd Hirsch have joined the cast of the movie, in which Mulroney stars as a defense attorney who returns to his hometown to defend a teacher (Cudlitz). Peter Markle is directing and Thomas Michael Donnelly wrote the script for the production, set for a Dec. 7 premiere.

In another Mystery Movie Night production for TNT, Catherine Bell of “Army Wives” will co-star with Wiliam Devane and Titus Welliver in "Good Morning, Killer," based on the novel by April Smith. Due up Dec. 13, “Killer” is being written and exec produced by Smith, with Frank von Zerneck also executive producing. Maggie Greenwald (“Songcatcher”) is directing.