John Slattery made his mark in movies and on television even before landing the signature role of Mad Men ad exec Roger Sterling. And while you can probably recite every one of Roger's one-liners ("When God closes a door..."), how much do you know about the actor delivering those zingers? For instance, do you know which Mad Men role that Slattery originally auditioned for? Or who his real-life wife Talia Balsam plays on the series? Take the John Slattery Ultimate Fan Quiz and prove it.

Mad Men Season 5 debuts with a special two-hour premiere on Sun., Mar. 25 at 9/8c.