I missed spotting Paul McGillion in the new Star Trek; I'm not remotely surprised. I also managed not to recognize Simon Pegg in the same film, which is pretty much inexcusable. I completely failed to recognize David Nykl (Zelenka!!) in Sanctuary. And I just learned that Dr. Tess Newman (Eureka) = Lt. Laura Cadman (Stargate: Atlantis).
Subclinical prosopagnosia FTL?