Nicholas Quinn

Nicholas Quinn is the main antagonist of the second half of the fifth and final season of the TV Series, Chuck, and therefore the final antagonist of the series.

He is portrayed by Angus Macfayden.

Overview
Nicholas used to work for the CIA and was primed to become the agency's first Intersect agent. However, Bryce Larkin intervened and sent the title to his friend Chuck (the protagonist), which caused Quinn to go on a downward spiral. He eventually left the CIA and began his own freelance spy agency, where he would service evil organizations such as Fulcrum, The Ring and Volkoff Industries (which coincidentally, Chuck put out of commission). Quinn wound up going out of business as a result of that, and now considers Chuck his arch-enemy and is determined to steal the Intersect.

Trivia

 * It is revealed that Quinn was using Fulcrum, The Ring and Volkoff to further his goals of attaining the Intersect from Chuck. So by extension, Quinn is the principal antagonist of the entire series.