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

Mobile Suit Gundam GQuuuuuuX
Tokwan (voice) · (1 episode)
2025

YAIBA: Samurai Legend
Muto (voice) · (2 episodes)
2025

Tokyo Override
Additional Voices (voice) · (2 episodes)
2024

Unnamed Memory
Jarno (voice) · (1 episode)
2024

KONOSUBA – An Explosion on This Wonderful World!
Chakamiya (voice) · (2 episodes)
2023

Drifting Dragons
Lee (voice) · (12 episodes)
2020

KONOSUBA – God's blessing on this wonderful world! Legend of Crimson
Chakamiya (voice)
2019

Kono Oto Tomare!: Sounds of Life
Kaoru Takinami (voice) · (1 episode)
2019

Kono Oto Tomare!: Sounds of Life
Judge (voice) · (3 episodes)
2019

Ingress: The Animation
Hank Johnson (voice) · (11 episodes)
2018

RErideD – Derrida, who leaps through time –
Volker Vidaux (voice) · (12 episodes)
2018

Kuroko's Basketball the Movie: Last Game
Hiroshi Fukuda (voice)
2017

Hagane Orchestra
DEN-TAN · (12 episodes)
2016

KONOSUBA - God's blessing on this wonderful world!
Guard (voice) · (1 episode)
2016

KONOSUBA - God's blessing on this wonderful world!
Knight (voice) · (1 episode)
2016

Smile Precure! The Movie: Big Mismatch in a Picture Book!
Man
2012

Glitter Force
Akanbee · (48 episodes)
2012

Another
Doctor (voice) · (1 episode)
2012

Fate/Zero
Assassin (voice) · (1 episode)
2011

Usagi Drop
Editor (voice) · (1 episode)
2011

THE iDOLM@STER
Announcer (voice) · (1 episode)
2011

THE iDOLM@STER
Director #1 (voice) · (1 episode)
2011

THE iDOLM@STER
Bodyguard #4 (voice) · (1 episode)
2011

A Certain Magical Index
Male Student (voice) · (1 episode)
2008

A Certain Magical Index
Skill-Out (voice) · (1 episode)
2008