Actoris to guest star in an upcoming episode of Doctor Who.The latest issue ofreports that the veteran actor will take a role in a story penned by Who stalwart, Mark Gatiss , which is part of the recording block currently being completed in Cardiff.Warner has had a long and illustrious acting career appearing in films such asand. He has appeared in the Star Trek filmsandas well as playing Gul Madred in. Although Warner has not appeared on television inbefore, he has lent his vocal talents to the series when he provided the voice of Lord Azlok in the animated adventure Dreamland , first shown in 2009. He has also appeared in many audio plays for Big Finish Productions , where he has played an alternative version of The Doctor.The story, due for transmission in early 2013, will be the fifth script for the series by Mark Gatiss, whose last script, Night Terrors , was shown last year. Gatiss told Doctor Who Magazine he was thrilled to be writing for the Eleventh Doctor once more, this time alongside his new companion played by Jenna Louise Coleman. It will be directed bywho directed The Sontaran Stratagem/The Poison Sky in 2008.The story will also star Irish actor, who has appeared in a number of film and television productions includingand the BBC One science-fiction drama series, and more recently has become known to international audiences as Ser Davos Seaworth on HBO'sTwo guest stars have also been confirmed for the previous episode recorded, the first to be filmed with. Written by Luther creatorand directed by, both of whom are making their début on Doctor Who, the episode will starandScott is a Scottish actor who has appeared in films such asand, recently, in, while Raine is best known for playing the lead role of nurse Jenny Lee in the BBC1 drama seriesAn updated cast list for each story can be found in the Doctor Who Guide