Supernatural own Mark Sheppard guest stars in the upcoming new season of Doctor Who.

Former Battlestar Galactica and Supernatural regular Mark Sheppard is set to add another cult sci-fi show to his resume when he makes a guest appearance in the upcoming new season of Doctor Who.

The news came after a press release was, um, released by the organizers of the sci-fi convention ValleyCon 36 who revealed that Sheppard, who was due to appear at the convention, had to withdraw due to his new Doctor Who commitments. Here’s a copy and paste jobbie of the presser…

It is thought that Sheppard will actually be appearing in the opening two episodes of the cult sci-fi show. No doubt he will be playing the baddie…