AMC's Mad Menstarts their final countdown on April 5, but the cast already said goodbye to the set after they wrapped shooting last year. ET got the scoop on the mood for their last day of filming.
"The last shot and set up -- we got it and said that's a wrap and I looked up and there were probably 300 people behind the thing and it was like, 'Oh yeah!' I forgot how big it was," Jon Hamm told ET.
"I'm forever grateful to Matthew, honestly, for sticking to the courage of his convictions and holding to his opinion," Jon said.
Elizabeth Moss was the first to audition for Peggy Olson, but she actually had competition from January for the role since her eventual character hadn't been written yet.
"There was no Betty, so I auditioned for Peggy," she said.
While the show made many stars, the fashion itself also played an important role, making Jon the perfect subject for GQ's latest cover. Inside the issue, Jon reveals that Breaking Bad star Bryan Cranston gave him advice on how to deal with Mad Men coming to an end.