Question: Insanitarium is a 2008 American direct-to-video horror-thriller film, stars included is which American actor,  known for playing Stuart Bloom on the CBS sitcom "The Big Bang Theory"?
Sentence (from "Kevin Sussman"): He is known for playing Stuart Bloom on the CBS sitcom "The Big Bang Theory" and Walter on the ABC comedy-drama "Ugly Betty".
Relevant evidence: No