Amy Brenneman to return to 'Reign' as Marie de Guise -- exclusive

The last time viewers saw Mary’s mother on Reign, it was at Mary’s wedding to Francis and things didn’t exactly end well. More specifically, Mary found out that her mother had delivered false news of the Queen of England’s death in order to speed up the process of Mary getting married. Mary then proceeded to kick her mother out of France.

But that might not last long. EW has learned exclusively that Amy Brenneman is set to reprise her role as Marie de Guise in an episode airing in early 2015.

“We are very excited to welcome back Amy Brenneman as Marie de Guise in an episode airing next year,” executive producer Laurie McCarthy said. “You never know what’s coming with Marie de Guise, and this time will be no different as she delivers a series of shocking revelations to Mary, and ultimately forces her to face and confront her failing relationship with Francis.”

McCarthy’s final tease: “And get ready to see how Marie inadvertently causes one of the ladies-in-waiting to experience something they’ve never experienced before!”

Reign returns Thursday, Jan. 22 at 9 p.m. on The CW.