Jack Dylan Grazer was the first actor to work with Pennywise

Jack Dylan Grazer (Eddie) was the first one out of all the kids to work with Bill Skarsgård (Pennywise). During their scene, Grazer would cry and gag while Skarsgård was right in his face yelling and drooling. Skarsgård was genuinely concerned for Grazer and after the scene ended, asked him if he was okay. Grazer looked right at him and said, "Love what you're doing with the character!" Skarsgård was left confused and impressed at Grazer's attitude, calling the child actors "little professionals."