A couple of weeks ago, the world of Sci-Fi film and TV lost two of its greatest actors: Don S. Davis (IMDB here) and Mitch Pileggi (IMDB here). Both were featured on the Stargate programs, and Pileggi was on The X-Files. Its a shame they both died, but kind of cool that they died in the same week.
I enjoyed both mens' performances on their respective shows. They will both be missed.