After graduating from Princeton in 2002, Ellie Kemper moved to New York to try to make it as an actor. While she auditioned and performed improv comedy, she worked at the now-closed Crumbs Bake Shop on the Upper East Side, and learned a few things about lattes.

"I don't think it's around anymore? I know it's not around anymore, but it was a great cupcake shop while it lasted! I don't take credit for that, but I had something to do with it. I was serving the cupcakes," Kemper tells CNBC Make It. "I had the early shift, 6 a.m. to I guess 2 p.m., and I got kind of good at making lattes. I wouldn't say, I mean, I wasn't hired for my ability to make lattes, but I learned how to do it, and you'd be surprised how many people are angry when they're going in to get cupcakes. You'd think, 'Oh they'd be happy,' but no."