Reginald Kastle

Reginald Kastle is a anime/manga character in the Yu-Gi-Oh! franchise
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Ryoga Kamishiro, also known as "Shark", is one of the main protagonists in Yu-Gi-Oh! Zexal. He is one of Yuma Tsukumo's closest friends and rivals.



He wears a dark maroon colored top underneath his purple jacket and black jeans.


Shark has a strange phobia of onions.

Story Arcs

Arc Name

After Shark lost the duel with Yuma, he joins a gang whose purpose is to steal the most powerful deck. Yuma and Shark work together in a tag team duel against Chills and Scorch.

General Information Edit
Name: Reginald Kastle
Name: 神代 凌牙
Romanji: Kamishiro Ryōga
Gender: Male
1st manga book:
1st anime episode: Yu-Gi-Oh! Zexal #1
1st anime movie:
Aliases Ryoga Kamishiro
Powers & Battle Rankings Edit
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