Heroes of the Golden Masks is an upcoming Canadian computer animated film directed by Sean O'Reilly. It stars Patton Oswalt, Byron Mann, Ron Perlman, Osric Chau and Christopher Plummer in his final film role before his death in 2021. Voice cast *Patton Oswalt as Aesop *Byron Mann as Jiahao *Christopher Plummer as Rizzo *Ron Perlman as Kunyi *Osric Chau as Zhu *Natasha Liu Bordizzo as Li *Sean Patrick O'Reilly as Thurman *Kiefer O'Reilly as Charlie *Jack Gillett as Brian *Zeus Mendoza as Zuma *King Lau as King Yufu *Kingston Chan as Mei *Jett Wu as Maly *Rickie Wang as Min *Albert Steven Tsai as Zhang *Michelle O'Reilly as Officer Meyers Production Plummer completed his voice work before his death in 2021.