Leviathan

ONA Finished 2025

Start watching Add to watchlist

Set in a war-torn reimagining of 1914, Leviathan follows Alek, a fugitive prince of the Austro-Hungarian Empire, and Deryn Sharp, a daring young girl disguised as a boy to serve in the British Air Service. When fate throws them together aboard the HMS Leviathan, a massive, living airship made from genetically engineered creatures, they embark on a world-changing adventure that will challenge everything they know about war, loyalty, and identity.

Studio: Orange
Episodes: 12 listed
Runtime: about 25 minutes per episode
Genres: Adventure, Mecha, Sci-Fi

Seasons & related series

Explore connected titles

Characters & voices

Meet the characters and their Japanese voice actors.

Back to the first cast page

Thomas

ThomasSupporting character

Naoto Kobayashi

Naoto KobayashiJapanese voice

Hirst

HirstSupporting character

Yukitarou Nakamura

Yukitarou NakamuraJapanese voice

Leviathan no Kanchou

Leviathan no KanchouSupporting character

Ryousuke Higa

Ryousuke HigaJapanese voice

Pavel

PavelSupporting character

Takahiro Fujiwara

Takahiro FujiwaraJapanese voice

Zaven

ZavenSupporting character

Naomi Kusumi

Naomi KusumiJapanese voice

Sultan

SultanSupporting character

Tesshou Genda

Tesshou GendaJapanese voice

George Darwin

George DarwinSupporting character

Michio Hazama

Michio HazamaJapanese voice

If you enjoyed Leviathan

Explore similar stories suggested by anime fans.

Reviews & recommendations

See what AniNest members think, or share your own review.

Read & write community posts