When the supernatural clashes with science fiction, the cast behind the microphone has to match that chaotic energy. The Dandadan anime adaptation brought Yukinobu Tatsu’s supernatural manga to life with a stellar roster of Japanese voice talent. From high school psychic battles to curses involving legendary spirits, the voice actors drive the dark humor and emotional weight of the series.
Knowing the faces and previous work behind your favorite characters transforms how you watch. This guide breaks down the primary Japanese voice cast, examining the seiyuu who breathe life into Momo, Okarun, and the bizarre entities haunting them.
Meet the Main Duo: Momo Ayase and Okarun
Every chaotic paranormal journey needs an anchor. For this supernatural comedy, that anchor rests on two high schoolers who couldn't be more different at the start of the story.
Shion Wakayama as Momo Ayase
Shion Wakayama voices Momo Ayase, a tough high schooler who believes in ghosts but rejects aliens. Wakayama captures Momo’s sharp tongue, fierce loyalty, and sudden flashes of vulnerability when things get terrifying. You might recognize Wakayama's range from other prominent lead roles like Takina Inoue in Lycoris Recoil or Destiny in Takt Op. Destiny. In this series, she balances comedic outbursts with action-packed delivery.
Natsuki Hanae as Ken "Okarun" Takakura
Natsuki Hanae steps into the role of Ken Takakura, nicknamed Okarun, an occult-obsessed nerd who believes in aliens but thinks ghosts are fake. Hanae excels at portraying stuttering, nervous intensity that quickly pivots into high-stakes courage once the supernatural threats close in. Hanae is a household name in the anime industry, famous for voicing Tanjiro Kamado in Demon Slayer and Ken Kaneki in Tokyo Ghoul. His performance grounds Okarun's terrifying transformations with genuine heart.
The Supernatural and Mentors
The supporting cast features veteran voice actors who bring decades of experience to the monstrous and mystical characters populating the world.
Mayumi Tanaka as Turbo Granny
Mayumi Tanaka voices the foul-mouthed, iconic entity known as Turbo Granny. Tanaka brings a raspy, unhinged energy that fits the chaotic nature of a vengeful spirit trapped in a doll. Viewers around the world know Tanaka best as the legendary voice of Monkey D. Luffy in One Piece, alongside her classic role as Krillin in Dragon Ball. Her comedic timing turns a terrifying urban legend into an unexpectedly hilarious part of the core dynamic.
Nana Mizuki as Seiko Ayase
Nana Mizuki voices Seiko Ayase, Momo's grandmother and a powerful local spiritual medium. Mizuki portrays Seiko with a cool, collected confidence, effortlessly commanding every room she enters while handling curses with casual expertise. Mizuki is an industry titan known both for her massive music career and major anime roles like Hinata Hyuga in Naruto and Fate Testarossa in Magical Girl Lyrical Nanoha.
School Rivals and Paranormal Allies
As the story expands, new classmates get dragged into the occult mess, requiring vocal performances that capture teenage ego mixed with absolute terror.
Ayane Sakura as Aira Shiratori
Ayane Sakura plays Aira Shiratori, a self-centered school idol who accidentally awakens her own spiritual powers after an encounter with Acrobatic Silky. Sakura leans into Aira's dramatic, self-absorbed monologues while making her gradual growth feel earned. Sakura's extensive resume includes major characters like Ochaco Uraraka in My Hero Academia and Gabi Braun in Attack on Titan.
Kaito Ishikawa as Jin "Jiji" Enjoji
Kaito Ishikawa voices Jin Enjoji, affectionately known as Jiji, Momo's childhood friend and athletic rival who brings a whole new layer of supernatural danger. Ishikawa captures Jiji's bright, friendly exterior that masks darker, possessed circumstances. Ishikawa is well-known for voicing Tobio Kageyama in Haikyu!! and Genos in One Punch Man.
Why the Seiyuu Choices Elevate the Animation
Studio Science SARU is known for fluid, avant-garde animation styles, but visual spectacle requires strong vocal performances to stick the landing. The deliberate casting choices contrast high-octane action with grounded character dynamics.
When veterans like Mayumi Tanaka play against younger leads like Shion Wakayama, the dialogue feels dynamic rather than rigid. The cast manages to sell dialogue about alien abductions and cursed testicles with absolute sincerity, which is essential for making the surreal premise work.
Frequently Asked Questions
Who is the studio behind the Dandadan anime?
The series is animated by Science SARU, a studio acclaimed for its distinct artistic style and bold visual direction in shows like Scott Pilgrim Takes Off and Keep Your Hands Off Eizouken!.
Where can I stream the Dandadan anime with the Japanese voice track?
The series is available for streaming on major platforms including Crunchyroll and Netflix, offering both Japanese audio with subtitles and various dubbed language tracks.
Did any of the voice actors win awards for their performances?
Yes, the cast and production received widespread recognition across global industry events, including major accolades at the Crunchyroll Anime Awards and the Seiyu Awards for lead and supporting vocal work.
How closely does the anime follow the original manga casting tone?
The Japanese voice cast matches the exact comedic timing, emotional shifts, and exaggerated expressions that fans appreciated in Yukinobu Tatsu's original manga serialization.
