Hiroo Sasaki (佐々木 啓夫, Sasaki Hiroo, born September 9) is a Japanese seiyuu (voice actor) from Akita Prefecture. He is affiliated with 81 Produce. He speaks the Akita dialect. His hobbies and special skills are singing, basketball and boxing.

KNOWN FOR

A Certain Magical Index
2011
KONOSUBA - God's blessing on this wonderful world!
2024
Fate/Zero
2011
Ohsama Sentai King-Ohger
2023
YAIBA: Samurai Legend
2025
Kono Oto Tomare!: Sounds of Life
2019
Unnamed Memory
2025
Usagi Drop
2011
Mobile Suit Gundam GQuuuuuuX
2025
Glitter Force
2012
THE iDOLM@STER
2011
KONOSUBA – An Explosion on This Wonderful World!
2023

FILMOGRAPHY

All
Movies
TV
Acting
28
2025
Unnamed Memory
as Jarno (voice)
2025
YAIBA: Samurai Legend
as Muto (voice)
2025
Mobile Suit Gundam GQuuuuuuX
as Tokwan (voice)
2024
KONOSUBA - God's blessing on this wonderful world!
as Guard (voice)
2024
KONOSUBA - God's blessing on this wonderful world!
as Knight (voice)
2024
Tokyo Override
as Additional Voices (voice)
2023
KONOSUBA – An Explosion on This Wonderful World!
as Chakamiya (voice)
2023
Ohsama Sentai King-Ohger
as Nkosopa Navigation Voice
2020
Drifting Dragons
as Lee (voice)
2020
I'm Standing on a Million Lives
as Bandit (voice)
2019
KONOSUBA – God's blessing on this wonderful world! Legend of Crimson
as Chakamiya (voice)
2019
Kono Oto Tomare!: Sounds of Life
as Kaoru Takinami (voice)
2019
Kono Oto Tomare!: Sounds of Life
as Judge (voice)
2018
RErideD – Derrida, who leaps through time –
as Volker Vidaux (voice)
2018
Ingress: The Animation
as Hank Johnson (voice)
2017
Kuroko's Basketball the Movie: Last Game
as Hiroshi Fukuda (voice)
2016
Hagane Orchestra
as DEN-TAN
2013
STAR DRIVER: The Movie
as Member (voice)
2012
Smile Precure! The Movie: Big Mismatch in a Picture Book!
as Man
2012
Glitter Force
as Akanbee
2012
Another
as Doctor (voice)
2011
Fate/Zero
as Assassin (voice)
2011
Usagi Drop
as Editor (voice)
2011
THE iDOLM@STER
as Announcer (voice)
2011
THE iDOLM@STER
as Director #1 (voice)
2011
THE iDOLM@STER
as Bodyguard #4 (voice)
2011
A Certain Magical Index
as Male Student (voice)
2011
A Certain Magical Index
as Skill-Out (voice)