ASoIaF/Game of Thrones, Mad Men, Masters of Sex, Breaking Bad, The Walking Dead, The Sopranos, a shit-ton of movies, some video games, and the occasional old man.
I kinda like John Slattery.
Christoph Waltz and Michael Sheen get an honorable mention.
This is not a spoiler-free blog; however, everything is tagged.
Roger Sterling is the best. King of the one liners, I think he has the record for the most ridiculous happenings on Mad...