Who voices Takeshi Onimaru in English?

Alan Lee voices Takeshi in English. His performance has the job of making the character's big self-conception feel alive while preserving the grounded rhythm of a student and kendo player.

Who is Takeshi Onimaru's Japanese voice actor?

Kenjirou Tsuda voices Takeshi in Japanese. The role asks for a presence that can hold both disciplined seriousness and the scale of the Demon King title.

Where can I watch Takeshi Onimaru?

Takeshi appears in Yaiba: Samurai Legend (2025), which streams on Hulu and Netflix. Start with that series to follow his story from its introduction.

What is Takeshi Onimaru's role in the story?

He is a student, kendo player, and Demon King. That mix gives the character his distinctive tension, pairing daily discipline with an identity on a much larger scale.

Is Takeshi Onimaru worth watching for?

Yes, especially if you enjoy characters whose confidence can read as funny and sincere in the same moment. Takeshi's kendo discipline gives his grand self-image something grounded to play against.

Takeshi Onimaru

Yaiba universe

Takeshi Onimaru brings a particular tension to a kendo story: the discipline of a student sits beside the enormous claim of being a Demon King. That combination changes the way every pause reads. Even before you know where his story will take him, you can feel the show asking whether these identities can occupy the same person without either one becoming a joke. The pleasure is in watching that question hold its ground. The series gives his seriousness room to register, while the grandness of the title keeps a little mischief in the air.

By Mika Tanabe

Appearance

The most useful way to read Takeshi's presence is through the contrast built into his role. A student suggests routine, instruction, and the pressure of being measured; a kendo player brings a formal physical discipline into that picture. Then the Demon King name pulls the scale outward. Those ideas give the character a strong silhouette in the viewer's mind, even when the scene is quiet. His appeal does not depend on a parade of visual detail. It comes from the feeling that ordinary effort and outsized self-conception are sharing the same frame, and the show lets both register. That balance makes his scenes feel legible without making them predictable.

Personality

Takeshi is most interesting when you let his confidence carry two possible meanings at once. A claim as large as Demon King can sound ridiculous, but it can also be a sincere way of organizing the world. Kendo gives that sincerity a grounded counterweight: practice asks for attention to the body, to timing, and to the person across from you. The result is a character whose force comes from commitment. He is not interesting because the title settles anything; it gives the viewer something to test against the more everyday discipline of being a student. I find that friction funny in a generous way. The show can enjoy the scale of his self-image while still taking his effort seriously, and that keeps the humor from flattening him into a punchline.

Takeshi Onimaru’s Story

Spoiler-free introduction

At the start, Takeshi is presented through a combination that is easy to grasp and hard to reduce: he is a student and kendo player who carries the title of Demon King. Those elements set up the central viewing pleasure without requiring any knowledge of what comes later. Watch how the ordinary discipline implied by kendo sits beside a claim with almost mythic scale. The contrast gives his early presence its shape. It also makes it possible to enjoy him on two levels at once, as someone trying to live up to a self-image and as a character whose self-image is inherently entertaining. This is the portion to read before continuing if you want the first impression kept intact.

Spoilers beyond the early introduction

Past the initial setup, the best way to follow Takeshi is to notice how the show asks the viewer to recalibrate the balance between his ordinary role and his extraordinary title. That shift is the point of continuing, rather than any single piece of information about him. Keep the early contrast in mind, because later context can change the weight of a boast or a moment of discipline. I will leave the specifics to the episodes themselves; the pleasure here is seeing the premise acquire texture as you watch, and deciding for yourself how much of Takeshi's self-understanding the series wants you to take at face value.

Abilities

Kendo is the physical language most closely tied to Takeshi. It suggests a kind of action built around concentration and trained movement, a useful counterpoint to the outsized title he carries. The interesting question for the viewer is not how a list of techniques would rank him, but what his discipline does to the tone of a scene. A practiced form can make a character's conviction feel tangible; a grand identity can make that same conviction amusing. Takeshi sits at the crossing of those effects. The show can draw energy from the seriousness of his practice and the scale of his ambition at the same time, so the action has character in it even before you try to measure what he can do.

Relationships

Grandpa Onimaru: The family connection gives Takeshi's story a personal point of reference. It helps the viewer think about his identity as something lived among other people, not just a title he carries into a scene.
Ayame Onimaru: Ayame connects Takeshi to a family world beyond his public self-presentation. That perspective matters because his grand title is only one part of how the show frames him.

Watch Takeshi Onimaru’s Story

Start with Yaiba: Samurai Legend (2025), where Takeshi's student discipline and Demon King identity are introduced in the same breath. That pairing is the key to his appeal, and seeing it in motion gives the words more comic and dramatic weight than a summary can. Follow the character for the push and pull between measured practice and extravagant self-belief. The show is most enjoyable when you let both sides be real at once: the title can make you smile, while his commitment keeps the smile affectionate. Hulu and Netflix carry Yaiba: Samurai Legend (2025), so the story is easy to pick up from its beginning and follow in order.

Start here: Yaiba: Samurai Legend (2025) — on Hulu, Netflix

Yaiba: Samurai LegendMain · 2025
Hulu, Netflix

Questions

Who voices Takeshi Onimaru in English?: Alan Lee voices Takeshi in English. His performance has the job of making the character's big self-conception feel alive while preserving the grounded rhythm of a student and kendo player.
Who is Takeshi Onimaru's Japanese voice actor?: Kenjirou Tsuda voices Takeshi in Japanese. The role asks for a presence that can hold both disciplined seriousness and the scale of the Demon King title.
Where can I watch Takeshi Onimaru?: Takeshi appears in Yaiba: Samurai Legend (2025), which streams on Hulu and Netflix. Start with that series to follow his story from its introduction.
What is Takeshi Onimaru's role in the story?: He is a student, kendo player, and Demon King. That mix gives the character his distinctive tension, pairing daily discipline with an identity on a much larger scale.
Is Takeshi Onimaru worth watching for?: Yes, especially if you enjoy characters whose confidence can read as funny and sincere in the same moment. Takeshi's kendo discipline gives his grand self-image something grounded to play against.