![Tsukasa Shishiou](https://img.flawlessfiles.com/_r/400x400/100/88/78/887853f135be2df74e82be8f97dde147/887853f135be2df74e82be8f97dde147.jpg)
Tsukasa Shishiou
獅子王 司
He is the antagonist of the first season and he is known as The Strongest High School Primate.
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Dr. Stone
Supporting (Role) TV -
Dr. Stone: Stone Wars
Supporting (Role) TV
![Nakamura, Yuuichi](https://img.flawlessfiles.com/_r/100x100/100/bb/5b/bb5bf905046aeba973d1b3001de50806/bb5bf905046aeba973d1b3001de50806.jpg)
Nakamura, Yuuichi
Japanese![Sinclair, Ian](https://img.flawlessfiles.com/_r/100x100/100/90/d5/90d5d521469a4539a4c696e7f45f9e81/90d5d521469a4539a4c696e7f45f9e81.jpg)
Sinclair, Ian
English![Terasaki, Yuka](https://img.flawlessfiles.com/_r/100x100/100/ea/75/ea757797c158dcfcb23e96a6a1ac32f0/ea757797c158dcfcb23e96a6a1ac32f0.jpg)
Terasaki, Yuka
Japanese![Yu, Apphia](https://img.flawlessfiles.com/_r/100x100/100/27/2a/272a4b1c05bad9ae5519238054430c8e/272a4b1c05bad9ae5519238054430c8e.jpg)
Yu, Apphia
English![Machado, Arthur](/images/no-avatar.jpeg)