Netflix has announced the Japanese language voice cast for the upcoming Leviathan anime series. The series is scheduled to begin streaming worldwide on the service on July 10, 2025.
The ensemble Japanese voice cast for the series stars:
- • Ayumu Murase as Prince Aleksandar “Alek”
- • Natsumi Fujiwara as Sharp
- • Shunsuke Sakuya as Count Volger
- • Yasuhiro Mamiya as Klopp
- • Mie Sonozaki as Dr. Nora Barlow
- • Ivan Shibata as Newkirk
- • Fairouz Ai as Lilit
- • Hiroki Tochi as Nikola Tesla
- • Ikuko Tani as Nene
- • Genta Nakamura as Hoffman
- • Daichi Hayashi as Rigby
- • Satoshi Niwa as Matthews
- • Naoto Kobayashi as Thomas
- • Yukitaro Namura as Hirst
- • Ryosuke Higa as Leviathan’s Captain
- • Michio Hazama as George Darwin
- • Takahiro Fujiwara as Pavel
- • Naomi Kusumi as Zaven
- • Tessho Genda as Sultan
Leviathan will have its world premiere at Anime Expo 2025 with Qubic Pictures on July 4, 2025 at 7:15 PM PST.
Christophe Ferreira (Eden character designer, Le Monde de Milo comic co-creator) is directing the series, with Joe Hisaishi contributing original songs for the production. Nobuko Toda (Ghost in the Shell: SAC_2045) and Kazuma Jinnouchi (Suzume, RWBY: Ice Queendom) are serving as music composers. Orange is in charge of the animation production.
Justin Leach and Taiki Sakurai are credited as the executive producers, with Qubic Pictures in charge of producing the overall project.
Scott Westerfeld’s original novel of the same name was published on October 6, 2009, with illustrations by Keith Thompson. It is part of a trilogy of books that includes the sequels Behemoth in 2010 and Goliath in 2011.
Netflix and Orange describes the main synopsis of Leviathan as:
Prince Aleksander, would-be heir to the Austro-Hungarian throne, is on the run. Deryn Sharp is a commoner, disguised as a boy in the British Air Service. As World War I begins to erupt, Alek and Deryn’s paths cross in the most unexpected way… taking them on a fantastical, around-the- world adventure that will change both their lives forever.
Source: Netflix Anime Official Twitter
