TV Guide: You are approaching the 300th episode, which will air early 2019, how does that feel?
Misha Collins: At the end of S5 we had the 100th episode party and someone joked " see you at the 200th Party!" and everyone was like,"yeah, f--- off" Then someone made the same joke at the 200th. I was like,"yeah,right". I just opened an invitation today to the party for the 300th.