Christopher Heyerdahl has been added to the official Stargate SG1 / Atlantis Convention guest line-up, at the 2009 Vancouver spectacular which is due to commence on the 2nd of April and conclude on the 5th April.
Christopher will be appearing on stage on Thursday, signing autographs for a nominal feed combined with a few photo ops.
Creation Entertainment the events organisers will be selling autograph/photo op tickets on the doors.
For fans unfamiliar with Christopher he is famed for his role as Todd the Wraith who first made his appearance in Atlantis Season 3.