Celebrity Central / Top 25 Celebs
Credit: Mark Seliger for Vanity Fair/Instagram
Published: Monday March 03, 2014 12:00 PM EST
More from PEOPLE
See More News
16 of 200
Call it the Don Draper effect: There's a fine line between Hamm and his Mad Men alter ego when it comes to being the most debonair man in the room – and girlfriend Westfeldt, it seems, would agree.
Copyright © 2014 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.
In partnership with AOL