Stargate Atlantis alum Paul McGillion has signed on to guest star on Syfy's Sanctuary. The actor, who played Dr. Carson Beckett, and later played Dr. Beckett's clone (it's complicated), on Atlantis will appear in the final two episodes of Sanctuary's second season. McGillion will play "Wexford," a character he played in the original Web series version of Sanctuary. The show's second season kicks off Oct. 9.

This news might get me to start watching Sanctuary regularly again. It's not a bad show, but it never really hooked me. Like Warehouse 13, the procedural elements of the show felt tedious, and I never really connected to any of the characters.

Many of you out there were surprised when Dr. Carson Beckett met his untimely demise on the "Sunday" episode of Stargate: Atlantis last season. That surprise turned into anger when the death of his character wasn't truly mourned in subsequent episodes. Perhaps the producers of the show heard your complaints because Dr. Beckett will be returning to the show next season.

The SciFi Channel is reporting that Paul McGillion will be reprising his role of Dr. Beckett for a two-episode arc in the show's fourth season, which will begin on September 28th.

There has been quite a bit of speculation about the move, but now it's official. Amanda Tapping will be joining the cast of Stargate: Atlantis for 14 episodes in season four. Executive Producer Brad Wright said that the idea is one that they have been considering for a long time, but they held back because SG-1 kept going. The recent announcement that SG-1 won't be returning after the current season has opened the door for Colonel Carter to make the jump.

Season four of Atlantis marks another change for the show. As Wright and fellow Executive Producer Robert C. Cooper turn their attention to the SG-1 movies, Joseph Mallozzi and Paul Mullie will take over as show-runners for Atlantis.I like the addition of Tapping to the cast. I've always been a fan of Carter, and with Paul McGillion not returning as Dr. Becket in season four, there is an opening to be filled.