
Isamu Tanonaka
Biography
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).
Also Known As
Movie Appearances

I Am A Dog: Don Matsugorou's Life
1983

One Piece: Clockwork Island Adventure
as Boo Jack (voice)
2001

The Three Musketeers in Boots
as Killer Cat B (voice)
1972

The Wonderful World of Puss 'n Boots
as Killer Cat B (voice)
1969

The Fantastic Adventures of Unico
as God 3 (voice)
1981

Persona 3 the Movie: #1 Spring of Birth
as Igor (voice)
2013

Kirato Saw Honorable Death With No Surrender ~ Mizuki Shigeru's War
as Medama Oyaji (voice)
2008

Tatakae!! Ramenman
as キョンピー
1988

Dr. Slump and Arale-chan: Hoyoyo! The Great Race Around The World
as Gara / Toriyama
1983

Slayers Premium
as Master (voice)
2001

Ursa Minor Blue
as Tongari
1993

Animal Treasure Island
as Cat Sailor C (voice)
1971

Persona 3 the Movie: #4 Winter of Rebirth
as Igor (voice)
2016

Puss 'n Boots Travels Around the World
as Cat Assassin B (voice)
1976

Persona 3 the Movie: #2 Midsummer Knight's Dream
as Igor (voice)
2014

Ali Baba and the Forty Thieves
as Police Chief (voice)
1971

Spooky Kitaro: Kitaro's Ghost Train
as Medama-oyaji
1999

Persona 3 the Movie: #3 Falling Down
as Igor (voice)
2015

Dr. Slump and Arale-chan: Hoyoyo! The Treasure of Nanaba Castle
as Gala (voice)
1984

Spooky Kitaro: Japan Explodes!!
as Medama Oyaji (voice)
2008
TV Appearances

Chouriki Sentai Ohranger
as Bara-Baby (voice)
1995

Steel Jeeg
as Ootone
1975

Mazinger Z
as Mucha
1972

Twin Princess of Wonder Planet
as Omendo
2005

Ninja Scroll: The Series
2003

UFO Robot Grendizer
as Mucha (voice)
1975

Paul's Miraculous Adventure
as Doppe (voice)
1976

Cackling Kitarou
as Medama Oyaji
1996

Dr. Slump
as Gala (voice)
1981

Dragon Quest: The Adventure of Dai
as Gramps Brass
1991

Witch Girl Tickle
as Ago
1978

Tensai Bakabon
as おまわりさん
1971