---
name: "Mutsumi Sasaki"
canonical: "https://film.one/person/mutsumi-sasaki"
fi1m_id: "mutsumi-sasaki"
imdb_id: "nm3602913"
tmdb_id: 1898086
wikidata_id: "Q11248409"
roles: ["Actor"]
born: "20 July 1961"
reviewed_on_fi1m: 1
average_as: "actor"
average_over: 1
updated: "2026-10-04T04:34:16.528318+00:00"
licence: "© Fi1m Ltd. Written by AI under a human editor; checked against sources before publication. Quote with attribution and a link to the canonical URL."
---

# Mutsumi Sasaki

## Identity

Mutsumi Sasaki

- **Canonical:** https://film.one/person/mutsumi-sasaki
- **Type:** Person
- **Fi1m ID:** mutsumi-sasaki
- **IMDb ID:** nm3602913
- **TMDB ID:** 1898086
- **Wikidata ID:** Q11248409
- **Same entity:** https://www.wikidata.org/wiki/Q11248409, https://www.imdb.com/name/nm3602913/, https://www.themoviedb.org/person/1898086

Actor. Born 20 July 1961 in Rikubetsu, Tokachi, Hokkaido, Japan.

## Details

- **Work:** Actor
- **Born:** 20 July 1961, Rikubetsu, Tokachi, Hokkaido, Japan
- **Also known as:** ささき むつみ
- **Elsewhere:** https://www.wikidata.org/wiki/Q11248409, https://www.imdb.com/name/nm3602913/, https://www.themoviedb.org/person/1898086

## Streaming the US now

- **HBO Max:** [*Summer Wars*](https://film.one/film/summer-wars.md) (77)

For United States; add `?region=XX` for another country.

## Biography

Mutsumi Sasaki is a Japanese actor and voice actor. He was born on 20 July 1961 in Hokkaido and is affiliated with the theatre company Engeki Shuudan En (En-kikaku).

Sasaki joined the Engeki Shuudan En training institute in 1983 and became a full member in 1986. He began in stage work before moving into television, film and extensive voice acting from the 1990s onwards. His credited roles include Kazuo Shinohara in the film *Summer Wars* (2009), Biwamaru in the series *Dororo* (2019), Hajime Usami in *My Dress-Up Darling* (2022) and supporting parts in *Ponyo* (2008), *The Seven Deadly Sins* (2014) and *Lu Over the Wall* (2017). He has also worked in dubbing for foreign films and video games.

*Sources: imdb.com, animenewsnetwork.com, enkikaku.jp, wikidata.org.*

## On Fi1m (1)

- *Summer Wars* (2009), Fi1m 77, as Kazuo Shinohara (voice) — [page](https://film.one/film/summer-wars.md)

## Complete filmography (18)

Every credit, newest first. Titles without a page can be requested for review on the HTML page.

- *The Witch and the Beast* (2024), series, as Narrator (voice)
- *Revenger* (2023), series, as Art book store owner (voice)
- *The Heike Story* (2022), series, as Mongaku (voice)
- *My Dress-Up Darling* (2022), series, as Hajime Usami (voice)
- *Thus Spoke Kishibe Rohan* (2020), series, as University Professor
- *Dororo* (2019), series, as Biwamaru (voice)
- *Lu Over the Wall* (2017), as Chief Priest (voice)
- *Mobile Suit Gundam Thunderbolt: December Sky* (2016), Actor
- *Mobile Suit Gundam Thunderbolt* (2015), series, as Burroughs
- *Snow White with the Red Hair* (2015), series, as Innkeeper (voice)
- *The Seven Deadly Sins* (2014), series, as Old Knight (voice)
- *Barakamon* (2014), series, as Elderly Man (voice)
- *Nagi-Asu: A Lull in the Sea* (2013), series, as Doctor (voice)
- *Silver Spoon* (2013), series, as Aki's Grandfather (voice)
- *Eden of the East Movie II: Paradise Lost* (2010), as Public Security Police (voice)
- *Summer Wars* (2009), as Kazuo Shinohara (voice) — Fi1m 77, [page](https://film.one/film/summer-wars.md)
- *Ponyo* (2008), as (voice)
- *Winter Days* (2003), Actor

---
© Fi1m Ltd. Written by AI under a human editor; checked against sources before publication. Quote with attribution and a link to the canonical URL. Canonical: https://film.one/person/mutsumi-sasaki