Kōichi Yamadera (Kanji: 山寺 宏一, born June 17, 1961) is a Japanese actor, voice actor, narrator and singer from Shiogama, Miyagi Prefecture. He graduated from Tohoku Gakuin University's economics school and is currently affiliated with Across Entertainment. Before that, he was affiliated with the Tokyo Actor's Consumer's Cooperative Society.
Voice Acting Roles[]
Games[]
- Denki Hero Roboman Chuu (1994) - Roboman
Movies[]
- Gekijō-ban Chō-Base (1995)
- Thomas & Friends: The Great Engine War (2019) - Diesel 10
Music Videos[]
- Life wo Sakuga-shite (2010) - Roboman
ONAs[]
- Kemono Travellers (2021) - Captain Kyle Onodera
OVAs[]
- Madou Monogatari (1991-1993) - Satan
- Meitantei Shōjo Kaori (2000) - Adalbretch Hämmerli (ep. 1)
- Dame Oyaji (2004) - Rokubee
- Ponpoko 4-Kyoudai World Tour (2006) - Chef/Butler
TV[]
- Pac-Man (1988-1989) - Pac-Man
- Hey! Panda (1989) - Robopan (ep. 33)
- Joshikousei Aragoto Kabuki Girl (1989) - Narrator
- TonPonCon 90 (1990-1991) - Pon
- KataTen (1993-1994) - Devil
- Denki Hero Roboman Chuu (1994) - Roboman
- Chō-Base (1995)
- Shinsennenki TonPonCon (2000-2001) - Pon
- Futari no Kōkyōkyoku (2001-2002) - Reijirō Kazato
- Kachi-kachi Yama (2007) - Tanuki
- Joshikōsei Wasshoi! (2010) - All other voices (ep. 25)
- Pokedebi the Cocoanimation (2016) - Chocoa
- Shin Denki Hero Roboman (2017-2018) - Roboman
- Denki Hero Roboman 21 (2021) - Roboman
- Kousagi Zayats: Minna Awasete! (2021) - Leonidas
- Neko Nichijō (2021) - Mastoor al-Dajani
- Penguin Darling Swan Song (2021) - Tamakura
- Calvin and Hobbes: Tokyo Tiger (2022) - Hobbes
- Pandaland (2023-present)
- Ponpoko Chūnen Crisis (2024) - Kōzō Shibayama
Anime Staff Positions[]
Music Videos[]
- Life wo Sakuga-shite (2010) - Performance
TV[]
- Ponpoko Chūnen Crisis (2024) - Theme Song Performance (ED)