I miss the Adar actor from season 1

Liking season 2 so far, but miss the Adar actor from season 1. The season 2 Adar is still good, but the guy from season 1 was by far my favorite actor in the show. Really wish he would have stayed with the show. Just the way he talked and his mannerisms were really intriguing and creepy to me. Anyone else feel the same?