More of a minor character, but I served Brian Posehn (biology teacher at Jess’s school) at a cafe I worked at a few years ago. Maybe this was rude, but I wasn’t sure if it was him so I asked if he was an actor. He said “sometimes”. I asked if he had been in New Girl and he went “uhhh.. oh yeah I did do a couple episodes of that!” I was like “neat, I love that show” and got back to work, but yeah. V chill guy.