Only at #D23 can Percy Jackson come face-to-face with Agatha Harkness! Walker Scobell was talking about his own fun interactions with "Percy Jacson" fans when he had a surprise fan freak-out moment of his own over Kathryn Hahn. "Percy Jackson and the Olympians" returns for Season 3 on Nov. 20 on Disney+. “Agatha All Along” is streaming now! #PercyJackson #WalkerScobell