Ryouta Oosaka

Theme Song Performance and Voice Actor

Biography

Ryouta Oosaka is a talented voice actor born in Tokushima Prefecture, Japan. Standing at 176 cm tall, he possesses a blood type O. Oosaka has an array of hobbies and skills including softball, bowling, walking, and playing games. Throughout his career, Oosaka has worked on various popular anime series, showcasing his versatile voice acting abilities. He has lent his voice to a wide range of characters, captivating audiences with his performances. On October 23, 2019, Ryouta Oosaka announced his marriage to fellow Seiyuu, Manami Numakura, further solidifying his presence in the anime indus... Read more

Known For

The Devil is a Part-Timer!

as Sadao Maou

Chivalry of a Failed Knight

as Ikki Kurogane

Haikyu!! 2nd Season

as Keiji Akaashi

Snow White with the Red Hair

as Zen Wistalia

Ace of Diamond

as Eijun Sawamura

Assassination Classroom

Theme Song Performance

Assassination Classroom Second Season

Theme Song Performance

Ace of Diamond

Theme Song Performance

Ace of Diamond: Second Season

Theme Song Performance (ED)

Character Roles (300)

2024
1 year ago
Makeine: Too Many Losing Heroines! as Sousuke Hakamada
Code Geass: Rozé of the Recapture as Heath Lott
Shadowverse Flame: Arc-hen as Ryouga Jasei
Mushoku Tensei: Jobless Reincarnation Season 2 Part 2 as Cliff Grimoire
Go! Go! Loser Ranger! as Yamato Kurusu
A Condition Called Love as Keigo Kurata
The Banished Former Hero Lives as He Pleases as Brett Westfeldt
Touken Ranbu Kai Kyoden as Shishiou
Haikyu!! Movie: The Dumpster Battle as Keiji Akaashi
The Witch and the Beast as Johan
A Sign of Affection Mini Anime as Kyouya Nagi
A Sign of Affection as Kyouya Nagi
Classroom of the Elite III as Yousuke Hirata
2023
2 years ago
Tokyo Revengers: Tenjiku-hen as Naoto Tachibana
The Saint's Magic Power is Omnipotent Season 2 as Oscar Dunkel
MF Ghost as Kouki Sawatari
The Devil is a Part-Timer! Season 2 (Sequel) as Sadao Maou
Mushoku Tensei: Jobless Reincarnation Season 2 as Cliff Grimoire
Shadowverse Flame: Seven Shadows-hen as Ryouga Jasei
The Gene of AI as Hide Tode
Black Clover: Sword of the Wizard King as Sekke Bronzazza
Demon Slayer: Kimetsu no Yaiba Swordsmith Village Arc as Gyuutarou
Opus.COLORs as Kyou Takise
The Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too Far as Yuuya Terra Hirasawa Esfort
Demon Slayer: Kimetsu no Yaiba -To the Swordsmith Village- as Gyuutarou
Tokyo Revengers: Christmas Showdown as Masato Tachibana
The Tale of Outcasts as Snow
The Misfit of Demon King Academy Ⅱ as Kanon
Tokyo Revengers: Christmas Showdown as Naoto Tachibana
Endo and Kobayashi Live! The Latest on Tsundere Villainess Lieselotte as Artur Richter

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Production Roles (14)

2023
2 years ago
Opus.COLORs - Theme Song Performance (ED) Airing
2019
6 years ago
STARMYU Season 3 - Inserted Song Performance
2018
7 years ago
Touken Ranbu: Hanamaru 2 - Theme Song Performance (ED)
2017
8 years ago
Kabukibu! - Theme Song Performance (ED)
2016
9 years ago
Assassination Classroom Second Season - Theme Song Performance
2015
10 years ago
Mini Hama: Minimum Hamatora Movies - Theme Song Performance
Mini Hama: Minimum Hamatora - Theme Song Performance
Ace of Diamond: Second Season - Theme Song Performance (ED)
Assassination Classroom - Theme Song Performance
Shounen Hollywood: Holly Stage for 50 - Theme Song Performance
2014
11 years ago
Ace of Diamond OVA - Theme Song Performance (ED1)
Shounen Hollywood: Holly Stage for 49 - Theme Song Performance, Inserted Song Performance
2013
12 years ago
Ace of Diamond - Theme Song Performance
Danball Senki Wars - Theme Song Performance (ED 2 & 3)