Isamu Tanonaka
was a Japanese voice actor from Taitō, Tokyo. He was best known for voicing Medama Oyaji in nearly every adaptation of Shigeru Mizuki's GeGeGe no Kitarō made during his lifetime.
During his life he had been attached to Gekidan Tōgei and then Theatre Echo; he was attached to Aoni Production at the time of his death. He had a naturally deep voice but became famous for voicing characters with a high pitched voice. In addition to GeGeGe no Kitarō, he also had prominent roles in Tensai Bakabon (as the first voice of Honkan-san), Mazinger Z (as Mucha), Paul's Miraculous Adventure (as Doppe), Magical Princess Minky Momo (as Sindbook), Akuma-kun (as Youaltepuztli), Dr. Slump & Arale-chan (as Gara and Akira Toriyama), Dragon Quest: Dai no Daibōken (as Brass), and the Shin Megami Tensei: Persona series (as Igor).
Acted in
Persona 5 The Animation: Stars and Ours
2019
as Igor (voice)
PERSONA3 THE MOVIE #4 Winter of Rebirth
2016
as Igor (voice)
PERSONA3 THE MOVIE #3 Falling Down
2015
as Igor (voice)
Persona 4 The Golden Animation
2014
as Igor (voice)
PERSONA3 THE MOVIE #2 Midsummer Knight's Dream
2014
as Igor (voice)
PERSONA3 THE MOVIE #1 Spring of Birth
2013
as Igor (voice)
Persona4 the ANIMATION
2011
as Igor (voice)
Spooky Kitaro: Japan Explodes!!
2008
as Medama Oyaji (voice)
Kirato Saw Honorable Death With No Surrender ~ Mizuki Shigeru's War
2008
as Medama Oyaji (voice)
Spooky Kitaro: Youkai Japan Rally 3D
2008
Graveyard Kitaro
2008
as Medama Oyaji (voice)
Cackling Kitarou
2007
as Medama Oyaji
Twin Princess of Wonder Planet
2005
as Omendo
Monster
2004
as Old Man (voice)
Ninja Scroll: The Series
2003
Slayers Premium
2001
as Master (voice)
One Piece: Clockwork Island Adventure
2001
as Boo Jack (voice)
Kindaichi Case Files Movie 2: Deep Blue Massacre
1999
as Kisuke Akamori (voice)
Spooky Kitaro: Kitaro's Ghost Train
1999
as Medama-oyaji
Spooky Kitaro: Yokai Express! The Phantom Train
1997
as Medama Oyaji (voice)
Spooky Kitaro: Ghost Nighter
1997
as Medama-oyaji (voice)
Spooky Kitaro: The Great Sea Beast
1996
as Kitarou's Father (voice)
Cackling Kitarou
1996
as Medama Oyaji
Chouriki Sentai Ohranger
1995
as Bara-Baby (voice)
Ursa Minor Blue
1993
as Tongari
Dragon Quest: The Adventure of Dai
1991
as Gramps Brass
Dragon Quest: Legend of the Hero Abel
1989
as Yogi (voice)
Tatakae!! Ramenman
1988
as キョンピー
Transformers: Super-God Masterforce
1988
as Donq (Humans)
Tatakae!! Ramenman
1988
as キョンピー
Spooky Kitaro: Crash!! The Great Rising of Demons from Another Dimension
1986
Spooky Kitaro: The Strongest Ghost Army! Landing in Japan!!
1986
Spooky Kitaro: The Great Yokai War
1986
as Medama Oyaji (voice)
Spooky Kitaro
1985
as Medama Oyaji (voice)
Cackling Kitarou
1985
as Medama-oyaji
Dr. Slump and Arale-chan: Hoyoyo! The Treasure of Nanaba Castle
1984
as Gala (voice)
Dr. Slump and Arale-chan: Hoyoyo! The Great Race Around The World
1983
as Gara / Toriyama
I Am A Dog: Don Matsugorou's Life
1983
Dr. Slump: Hoyoyo! Space Adventure
1982
as Gala (voice)
Dr. Slump and Arale-chan: Hello! Wonder Island
1981
as Gala (voice)
Dr. Slump
1981
as Gala (voice)
The Fantastic Adventures of Unico
1981
as God 3 (voice)
Bark! Bun Bun
1980
as Big (voice)
Spooky Kitaro: The All Seeing Eye
1980
Botchan
1980
as Nodaiko (voice)
Witch Girl Tickle
1978
as Ago
Paul's Miraculous Adventure
1976
as Doppe
Puss 'n Boots Travels Around the World
1976
as Cat Assassin B (voice)
Steel Jeeg
1975
as Ootone
UFO Robot Grendizer
1975
as Mucha
Mazinger Z vs The Great Dark General
1974
as Dr. Nossori/Mucha
Mazinger Z vs. Devilman
1973
as Mucha
Mazinger Z
1972
as Mucha
The Three Musketeers in Boots
1972
as Killer Cat B (voice)
Cackling Kitarou
1971
as Medama-oyaji
アパッチ野球軍
1971
as Monkey(story12-26)
Kunimatsu-sama no Otoridai
1971
as おでこ
Tensai Bakabon
1971
as おまわりさん
Ali Baba and the Forty Thieves
1971
as Police Chief (voice)
Animal Treasure Island
1971
as Cat Sailor C (voice)
Norakuro
1970
as 山ザル軍曹
Tomorrow's Joe
1970
as Miss Oyama
The Genie Family
1969
as Papa
Flying Phantom Ship
1969
もーれつア太郎
1969
as Kokoro no Kopun B
Umeboshi-denka
1969
as 王様
The Wonderful World of Puss 'n Boots
1969
as Killer Cat B (voice)
Spooky Kitaro
1968
as Le père de Kitarou (Voix)
Animal 1
1968
as 東五郎
Cackling Kitarou
1968
as Medama Oyaji (voice)