John Shearer/Invision for AMC/AP
04/08/2014 at 05:00 PM EDT
It's so hard to say goodbye.
And when it comes to a hit show like Mad Men
, which premieres the first episode of its seventh and final season
on Sunday, that saying goes for the fans and actors alike.
"It's definitely getting sad," Elisabeth Moss told PEOPLE at the show's final season premiere party
at Arclight Cinemas in Los Angeles on April 2. "We just started the last seven episodes that will air next year. It feels like it's almost the end. It's very strange."
So after seven seasons on the show, is she ready to move on? "The serious answer is of course, yes, it’s time for everyone to move on at a certain point," said Moss, 31. "The not serious answer is no, and I will be staging a sit-in and not leaving. Ever!"
It wouldn't be the first time she's been rebellious
: The star infamously flipped the bird at E!'s "manicam" on the Golden Globes red carpet. We wonder if she'll be able to rally Jon Hamm
, Christina Hendricks
and the rest of the troops for her latest protest.
As for what will come of her character, Peggy Olsen, "I don't care what happens," the Emmy-nominated actress said. "I don't care if it's my funeral. I just want to be in it."
Season 7 of Mad Men
premieres Sunday, April 13, on AMC.