Tezuka In English
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Kao Sekken

Also known as カオー・セッケン (Kaō Sekken)

Status: Minor Star (★)

One of Tezuka’s oldest Stars, Kao Sekken is more of a crook than a true villain. He usually appears alongside his co-conspirators Afill and Gratin, and might show up as a member of a secret society, religious fanatic, a kidnapper, or some other kind of thug.

Notable Roles

Kao Sekken, like his regular partners, Afill and Gratin, got his big break in the amateur work Lost World [Manuscript] (1946), however his official debut is as the leader of the Mamango Secret Society crooks in Lost World (1948). He is also memorable as the Hong Kong martial arts master in Big X (1963-66).

Hello, My Name (in English) is…

In Japan, Kao was (and still is) a famous name brand of sekken (セッケン) – which means “soap” in English. Osamu Tezuka was inspired by the company’s “crescent moon face” logo, so he decided to name his character after the brand. An English equivalent might be “Ivory Soap”.

Distinguishing Features

Much like the crescent moon logo after which he is designed, Kao Sekken’s bald head and long jaw for a sort of crescent shape of their own. He is also distinguishable by the two pointy outcrops of hair on the side of his head.

Manga Appearances

If you spot an appearance not already listed, please let us know in the comments section below!

1946

Lost World [Manuscript] as “Kao Sekken”


1948

Lost World as “a member of the Mamango Secret Society”


1952

Astro Boy (“Gas People”) as “the man obsesses with gas”
Astro Boy (“Frankenstein”) as “one of the crooks”


1954

Goto Matabei


1957

Whirlwind Z as “a believer in the Puipui religion”
The Kokeshi Detective Agency as “the crook on the beach”


1961

Astro Boy (“The Blast Furnace Mystery”) as “the murderer”


1962

Brave Dan as “one of Dr. Zogel’s’s henchmen”


1972

Lion Books (“OBA Mansion – Spring in Full Bloom”) as “an employee of Dammar Land company”


1973

Black Jack (“Is there a Doctor?”) as “a motorcyle cop”
Black Jack (“Miyuki and Ben“) as “a doctor”


1974

Black Jack (“Son of Hariti”) as “one of the kidnappers”
Black Jack (“Fits”) as “Katen-ya”
Black Jack (“Pinoko Lives”) as “a doctor”


1976

Black Jack (“U-18 Knew”) as “a member of the hospital staff”


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