Dan Stevens, who was the very gentlemanly Matthew Crawley in Downton Abbey, has a very different role in the new drama series Legion…

Downton Abbey favourite Dan Stevens will be seen in a very different role when the X-Men spin-off series Legion airs in February next year.

The series tells the story of David Haller (played by Dan), a troubled man who may be more than human… It’s certainly thought that he is.

Diagnosed as schizophrenic as a child, David has been in and out of psychiatric hospitals for years. Now in his early thirties and institutionalised once again, David loses himself in the rhythm of the structured regimen of life in the hospital.

“But the pleasant numbness of David’s routine is completely upended with the arrival of a beautiful and troubled new patient named Syd [Rachel Keller],” says a show insider. “Inexplicably drawn to one another, David and Syd share a startling encounter, after which David must confront the shocking possibility that the voices he hears and the visions he sees may actually be real.”

dan stevens, legion

David’s world is very disturbed in Legion!

A haunted man, David escapes from the hospital and seeks shelter with his sister Amy (Katie Aselton).  But Amy’s concern for her brother is trumped by her desire to protect the picture perfect suburban life she’s built for herself. Eventually, Syd guides David to Melanie Bird (Jean Smart), a nurturing but demanding therapist with a sharp mind and unconventional methods. She and her team of specialists – Ptonomy (Jeremie Harris), Kerry (Amber Midthunder) and Cary (Bill Irwin) – open David’s eyes to an extraordinary new world of possibilities.

Legion starts on Fox, Thursday, February 9, 9.00pm