Lily Taylor and Barry Pepper have joined Fox's sequel to The Maze Runner, according to Deadline and The Hollywood Reporter.

The Maze Runner Chapter II: The Scorch Trials will adapt the second novel in James Dashner's Maze Runner bestselling young-adult series. The Fox sequel has been rushed into production following the success of the first film, which has grossed $305 million worldwide. Scorch Trials already has a Sept. 18, 2015, release date; filming is expected to begin later this month in New Mexico.

Taylor (The Conjuring) will play Mary Cooper, a doctor who provides assistance to lead character Thomas (Dylan O'Brien) and his allies. Pepper (The Lone Ranger) has been cast as survivalist and soldier Vince. Director Wes Ball and screenwriter T.S. Nowlin return to the franchise.