is a Japanese voice actor and singer. He is represented by the voice actor management firm, Aoni Production, and was previously represented by Arts Vision and 81 Produce. In 1988, he voiced the character Tetsuo Shima in the movie Akira, which was adapted from the manga of the same name. He also provided the voice of Yusuke Urameshi in the anime adaptation of the manga YuYu Hakusho and returned to that role in video games for that franchise. He is sometimes mistaken for fellow voice actress Nozomi Sasaki, whose name is written the same way. Sasaki has emerged the victor of the Seiyū Grand Prix (in which votes were collected to compile a top ten list of voice actors) more times than any other voice actor.
Sasaki was known for having a high-pitched voice, but by 1998 it became lower due to constantly overworking in voice acting and singing, although it was suspected at first that the reason his voice changed was due to his constant smoking and drinking. He is an avid reader and can speak English.
Filmography
Television animation
;1986
- Doteraman (Tanki)
;1988
- Yoroiden Samurai Troopers (Shin Mori a.k.a. Suiko no Shin (Shin of the Torrent))
;1989
- Momotaro Densetsu (Momotarou)
;1991
- Genji Tsūshin Agedama (Agedama Genji)
;1992
- YuYu Hakusho (Yusuke Urameshi)
;1994
- Magic Knight Rayearth (Guru Clef)
- Captain Tsubasa J (Tsubasa Ozora (adult))
- Revolutionary Girl Utena (Ruka Tsuchiya)
- Blade of the Immortal -Immortal- (Kagehisa Anotsu)
;2021
- Getter Robo Arc (Messiah Tyr)
;2022
- Eternal Boys (Makoto Kakizaki)
;2024
- Bucchigiri?! (Marito)
- The Witch and the Beast (Necromancer)
- Grendizer U (Great King Vega)
Unknown date
- Soreike! Anpanman (Mezamashi-kun)
- Majin Tantei Nougami Neuro (Yuuya Higuchi)
- Maximo (The Grim Reaper)
- Rurouni Kenshin OVAs (Enishi Yukishiro and Gentatsu Takatsuki)
- Solatorobo: Red The Hunter (Blanck)
- Shigurui: Death Frenzy (Seigen Irako)
- Tetsuwan Tantei Robotack (Robotack)
- Yagami-kun's Family Affairs (Shigeki Yaoi)
Original video animation (OVA)
- Bubblegum Crisis (1987) (Mackie Stingray)
- Legend of the Galactic Heroes (1988) (Julian Mintz)
- Doraemon: Nobita and the Spiral City (1997) (Pibu)
- 'Fafner in the Azure: Heaven and Earth' (2010) (Hiroto Douma)
- Yu-Gi-Oh!: The Dark Side of Dimensions (2016) (Shadi Shin)
- In This Corner of the World (2016)
- Mobile Suit Gundam: Hathaway – The Sorcery of Nymph Circe (2026) (Gass H. Huguest / Hathaway Noa)
Video games
- Tekken 2 (1995) (Lee Chaolan)
- Tactics Ogre: Let Us Cling Together (1996) (Sega Saturn version)
- Valkyrie Profile & Valkyrie Profile: Lenneth (????) (Lucio)
- Ehrgeiz (1998) (Cloud Strife, Zack Fair; PS1 version)
Dubbing
Live-action
- Brian Austin Green
- Beverly Hills, 90210 (David Silver)<!--1990-->
- Domino (Brian Austin Green)<!--2005-->
- Impact Point (Holden Gregg)<!--2008-->
- Cross Wars (Callan)<!--2017-->
- BH90210 (Brian Austin Green/David Silver)<!--2019-->
- The Schouwendam 12 (Rogier van Pallant (Benja Bruijning))
- SEAL Team (Sonny Quinn (A. J. Buckley))
- Station Eleven (Arthur Leander (Gael García Bernal))
Animation
- Thomas the Tank Engine & Friends (Edward the Blue Engine (Season 9-present replacing Yasuhiro Takato))
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- Buffy the Vampire Slayer (Daniel "Oz" Osbourne (Seth Green))
- Home Alone 3 (Stanley Pruitt (Seth Smith))
- Mrs. Doubtfire (Christopher "Chris" Hillard (Matthew Lawrence))
- Sister Act 2: Back in the Habit (Tyler Chase (Christian Fitzharris))
- Sneakers (Carl Arbogast (River Phoenix))
- That '70s Show (Steven Hyde (Danny Masterson))
Animation
- The Raccoons (Cedric Sneer)
- Total Drama Revenge of the Island (Scott)
- Ben 10: Alien Force (Pierce)
- Ben 10: Ultimate Alien (Pierce)
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Discography
Singles
- [1989.11.29]
- [1991.07.19] BE MY TABU
- [1992.07.25]
- [1994.11.21]
Album
- [1990.05.30] HEART SCANDAL
- [1990.12.28]
- [1992.11.06] rumblefish
- [1995.06.21] Different Beat
- [1996.08.21] I'm in The Mood
- [1997.08.01] DOUBLE DIRECTION
Mini Album
- [1992.01.11] BABYLON
- [1995.12.26] FLARE
Best Album
- [1993.07.28] Taste of tears
- [1993.07.28] Colors of smile
Live Album
- [1996.04.19] Concert Tour "Flare'95" LIVE
Accolades
- Kei Tomiyama and Kazue Takahashi Award at the 18th Seiyu Awards (2024)
