Mad Men is known for its retro references, but the recent return of the latest season has us feeling nostalgic for a different era: the '90s. A My So-Called Life star came back into pop culture relevance with a cameo, while Don's latest love is recognizable from a more recent phenomena: Twilight. They're not the first actors familiar to many of us millennials to get a part on AMC's 1960s period drama. Show creator Matthew Weiner once shed light on the casting, telling the New York Times, "I want to give people the chance to be seen in a new light." And indeed he does. Since guest appearances are never announced by the network, the surprise cameos have definitely become a fun part of watching, and some have turned into more regular roles. Let's take a look at our favorites.
Have You Figured Out Where You Know All These Mad Men Guest Stars From?