Following the announcement of Richard E Grant set to appear in this years Doctor Who Christmas Special, (via the official Doctor Who Twitter), The BBC Media Centre have released a full press release that also confirms Tom Ward's involvement in the episode.

Tom Ward is best known for his role as Dr. Harry Cunningham in Silent Witness and will join Matt Smith, Jenna-Louise Coleman and Richard E Grant for filming on the Christmas episode sometime this week. The Christmas Special is written by Steven Moffat and Saul Metzstein returns to direct the episode.

In the press release, Richard E Grant said: "I played Doctor Who in the digital animated Scream Of The Shalka and I'm honoured to be in the Christmas Special."

you can see the Full press release here