Saiki Kumagoro


Saiki Kumagoro manga

Character Name
Full Name Saiki Kumagoro
Kanji 斉木 熊五郎
Furigana さいき くまごろう
Personal Info
Birthday March 25
Blood type A
Gender Male
Height 168 cm
Weight 54 kg
Manga Debut Chapter 92
Anime Debut Season 1 Episode 19
English Voice R. Bruce Elliott
Japanese Voice Yamadera Kouichi

Kumagoro Saiki (斉木 熊五郎, さいき くまごろう lit. Saiki Kumagoro) is the husband of Saiki Kumi, the father of Kurumi, the father-in-law of Saiki Kuniharu and grandfather of Saiki Kusuo and Saiki Kusuke.


Kumagoro is a grumpy old man who hates Kusuo's father Kuniharu and loves his daughter Kurumi. He is actually a tsundere [1] who truly wants to dote on his grandchildren. He is surprisingly gets along with Riki.


  • His name, Saiki Kumagoro, is a pun on the word Psychic (サイキック Saikikku), just like the rest of the Saiki family.
  • Kumi and Kumagoro's Japanese voice actors, Rie Tanaka and Koichi Yamadera respectively, were actually married at the time of their debut episode's production, but the two divorced in 2018.


  1. Japanese term for a character development process that describes a person who is initially cold and even hostile towards another person before gradually showing a warmer side over time.


v · e Saiki Family
Members: Saiki Kumi · Saiki Kumagorou · Saiki Kurumi · Saiki Kuniharu · Saiki Kusuke · Saiki Kusuo
Miscellaneous: Anpu · Pushi · Warp
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