The English voice cast for The Boy and the Heron has been revealed, with Christian Bale confirmed to be among the cast members. Other reported cast members include Florence Pugh, though there is some variation in the additional names mentioned, with some outlets listing actors such as Gemma Chan, Robert Pattinson, and Dave Bautista. The film is a work by Hayao Miyazaki, and Christian Bale is noted to be involved in a Studio Ghibli production.