Onimusha Way of the Sword stars Miyamoto Musashi as the fixed protagonist. Sasaki Ganryu is the rival and the signature demo boss. The Genma siblings Ifuu and Burai are antagonists, and Genma Musashi is the late-game boss tied to Musashi's Oni Awakening arc. There is no character creation or customization system — Musashi is a complete, written lead rather than a blank-slate character.
Onimusha Way of the Sword Cast Overview
Onimusha: Way of the Sword has a focused cast built around Miyamoto Musashi as the fixed protagonist. Musashi's role is written rather than customizable, and there is no character creation or customization system. The supporting cast is built around a clear rival-antagonist triangle: Sasaki Ganryu as the rival, the Genma siblings Ifuu and Burai as antagonists, and Genma Musashi as the late-game boss tied to Musashi's own Oni Awakening arc. The cast is intentionally narrow. Rather than branching between playable characters, the game centers Musashi's sword play and Oni Gauntlet timing as the through-line, with the supporting cast serving as the boss-fight content and the narrative mirror for Musashi's transformation.
Miyamoto Musashi — Fixed Protagonist
Miyamoto Musashi is the single fixed protagonist of Onimusha: Way of the Sword. He is portrayed as a swordsman caught up in the Genma conflict, and his Oni Awakening transformation is the narrative bridge between his human sword style and the Oni Gauntlet system. There is no character creation or customization layer; Musashi is a complete, written lead rather than a blank-slate character. As the protagonist, Musashi's move set — sword play, Oni Gauntlet parry, Issen counter, and Oni Awakening transformation — is the player-facing combat system. Charms augment his kit, but the protagonist's move set itself is fixed. The [combat mechanics page](/combat/) explains the four combat layers.
Sasaki Ganryu — Rival
Sasaki Ganryu is Musashi's direct rival. The rivalry is the through-line of the early chapters and the framing for the demo's signature boss fight. Ganryu is the first real skill check a player meets, and his heavy-swing animations open the cleanest Oni Gauntlet window in the demo. The [Issen guide](/issen/) covers the timing rhythm that the Ganryu fight teaches.
Ifuu and Burai — Genma Siblings
Ifuu and Burai are confirmed Genma siblings. They are positioned as a dual boss encounter, which raises the combat pressure by forcing Musashi to manage two Oni Gauntlet windows in parallel. The Issen timing rhythm from the Sasaki Ganryu fight carries over, but the dual-encounter pacing complicates chain-Issens because two enemies' animations need to be tracked at once.
Genma Musashi — Demon Musashi
Genma Musashi is the late-game boss tied to Musashi's Oni Awakening arc. Genma Musashi represents the Oni-corrupted version of Musashi's sword style, making the encounter a narrative mirror of Musashi's transformation. The fight is positioned as the capstone boss rather than a separate difficulty tier. Exact HP values and damage scaling are not announced as of 2026-09-02.
Supporting Cast and Ally Roles
Beyond the four named Genma encounters, Onimusha: Way of the Sword includes supporting characters who appear in the chapter narrative rather than as boss fights. The Premium Deluxe Edition adds ally outfits that customize these supporting characters' looks. Specific supporting character names and full voice-cast credits beyond what Capcom and launch-window reviews have already named are not announced as of 2026-09-02.
Voice Cast and Localization
Capcom has published the principal cast credits through its standard channels and the launch-window reviews have named the same leads. Full voice-cast credits beyond what Capcom and launch-window reviews have already published are not announced as of 2026-09-02. Localization is English-only at launch; other language voice tracks are not announced as of 2026-09-02.
FAQ
Who is the main character in Onimusha Way of the Sword?
The main character is Miyamoto Musashi, the real historical swordsman who Capcom uses as the fixed protagonist. There is no playable-character select, no avatar system, and no party to switch between; Musashi is the only playable character.
Is there character creation in Onimusha Way of the Sword?
No. There is no character creation or character customization system. Musashi's appearance, name, and abilities are all locked to the design shown in the Capcom Spotlight 4th character trailer.
Who voices Musashi in Onimusha Way of the Sword?
Specific Musashi voice-actor credits for English and Japanese have not been published as of 2026-09-02. Capcom has confirmed the Musashi role but has not named the voice actor publicly.