This was probably unintentional but there are 2 guest threads for 2020. Here's the other one: https://board.otakon.com/index.php?/topic/29454-otakon-2020-guest-request-thread/
Anyway, here are my requests. I'm more-or-less copying and pasting my same list from last year.
Japanese Guests
Kouki Uchiyama: Yuri Plisetsky (Yuri on Ice), Tomura Shigaraki (My Hero Academia), Ikuya Kirishima (Free), Kei Tsukishima (Haikyuu), Soul Evans (Soul Eater) https://profile.himawari.net/view/1559 Kappei Yamaguchi: Inuyasha (Inuyasha), L (Death Note), Usopp (One Piece), Shinichi Kudo (Case