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).
Movies
PERSONA3 THE MOVIE #4 Winter of Rebirth
Igor (voice)
PERSONA3 THE MOVIE #3 Falling Down
Igor (voice)
PERSONA3 THE MOVIE #2 Midsummer Knight's Dream
Igor (voice)
PERSONA3 THE MOVIE #1 Spring of Birth
Igor (voice)
PERSONA 4 the Animation: No One Is Alone
Igor (voice)
Spooky Kitaro: Japan Explodes!!
Medama Oyaji (voice)
Kirato Saw Honorable Death With No Surrender ~ Mizuki Shigeru's War
Medama Oyaji (voice)
Spooky Kitaro: Youkai Japan Rally 3D
Slayers Premium
Master (voice)
One Piece: Clockwork Island Adventure
Boo Jack (voice)
Kindaichi Case Files Movie 2: Deep Blue Massacre
Kisuke Akamori (voice)
Spooky Kitaro: Kitaro's Ghost Train
Medama-oyaji
Spooky Kitaro: Yokai Express! The Phantom Train
Medama Oyaji (voice)
Spooky Kitaro: Ghost Nighter
Medama-oyaji (voice)
Spooky Kitaro: The Great Sea Beast
Kitarou's Father (voice)
Ursa Minor Blue
Tongari
Devil Boy: Welcome to Devil Land!!
Devil Boy
Tatakae!! Ramenman
キョンピー
Spooky Kitaro: Crash!! The Great Rising of Demons from Another Dimension
Spooky Kitaro: The Strongest Ghost Army! Landing in Japan!!
Spooky Kitaro: The Great Yokai War
Medama Oyaji (voice)
Spooky Kitaro
Medama Oyaji (voice)
Dr. Slump and Arale-chan: Hoyoyo! The Treasure of Nanaba Castle
Gala (voice)
Dr. Slump and Arale-chan: Hoyoyo! The Great Race Around The World
Gara / Toriyama
I Am A Dog: Don Matsugorou's Life
Dr. Slump: Hoyoyo! Space Adventure
Gala (voice)
Dr. Slump and Arale-chan: Hello! Wonder Island
Gala (voice)
The Fantastic Adventures of Unico
God 3 (voice)
Spooky Kitaro: The All Seeing Eye
Botchan
Nodaiko (voice)
Puss 'n Boots Travels Around the World
Cat Assassin B (voice)
Mazinger Z vs The Great Dark General
Dr. Nossori/Mucha
Mazinger Z vs. Devilman
Mucha
The Three Musketeers in Boots
Killer Cat B (voice)
Ali Baba and the Forty Thieves
Police Chief (voice)
Animal Treasure Island
Cat Sailor C (voice)
Flying Phantom Ship
The Wonderful World of Puss 'n Boots
Killer Cat B (voice)
Spooky Kitaro
Le père de Kitarou (Voix)
TV Series
Persona 4 The Golden Animation
Igor (voice)
12 Episodes
PERSONA 4 the Animation
Igor (voice)
25 Episodes
Graveyard Kitaro
Medama Oyaji (voice)
11 Episodes
Cackling Kitarou
Medama Oyaji
100 Episodes
Twin Princess of Wonder Planet
Omendo
51 Episodes
Monster
Old Man (voice)
1 Episode
Ninja Scroll: The Series
1 Episode
Cackling Kitarou
Medama Oyaji
114 Episodes
Chouriki Sentai Ohranger
Bara-Baby (voice)
1 Episode
Dragon Quest: The Adventure of Dai
Gramps Brass
46 Episodes
The Enemy's the Pirates!
Yoshizaki (voice)
6 Episodes
Dragon Quest: Legend of the Hero Abel
Yogi (voice)
43 Episodes
Transformers: Super-God Masterforce
Donq (Humans)
42 Episodes
Tatakae!! Ramenman
キョンピー
35 Episodes
Cackling Kitarou
Medama-oyaji
115 Episodes
Dr. Slump
Gala (voice)
243 Episodes
Bark! Bun Bun
Big (voice)
39 Episodes
Witch Girl Tickle
Ago
45 Episodes
Paul's Miraculous Adventure
Doppe (voice)
50 Episodes
Steel Jeeg
Ootone
46 Episodes
UFO Robot Grendizer
Mucha (voice)
74 Episodes
Mazinger Z
Mucha
92 Episodes
Cackling Kitarou
Medama-oyaji
45 Episodes
アパッチ野球軍
Monkey(story12-26)
26 Episodes
Kunimatsu-sama no Otoridai
おでこ
46 Episodes
Tensai Bakabon
おまわりさん
40 Episodes
Norakuro
山ザル軍曹
26 Episodes
Tomorrow's Joe
Miss Oyama
79 Episodes
The Genie Family
Papa
52 Episodes
もーれつア太郎
Kokoro no Kopun B
90 Episodes
Umeboshi-denka
王様
26 Episodes
Animal 1
東五郎
27 Episodes
Cackling Kitarou
Medama Oyaji (voice)
65 Episodes