Rikiya Katsukame

Rikiya Katsukame is a villain in My Hero Academia and is one of the Shie Hassaikai's Eight Bullets. He is one of Overhaul's most useful agents. He is voiced by Hiroaki Okuda in the Japanese version and Chris "GeneralIvan" Guerrero in the English dub.

Description
Rikiya Katsukame is a massive, hulking man with the Quirk Vitality Stealing, which allows him to absorb other people's stamina by touching them, powering himself up in the process. Using the Quirk-enhancing drug Trigger, he can steal the vitality of everyone around him by simply inhaling.

Rikiya seems to require energy to move effectively, as when he charged through the gate at the beginning of the raid, he complained how it was too early for stuff to happen. After he was temporarily captured and absorbed the energy of people around him, he declared he 'felt like a new man'. In general, it seems Rikiya enjoys absorbing energy from others, which may simply be a byproduct of his Quirk or indicate that Rikiya is normally rather lazy.

Synopsis
Not many details are told about Rikiya throughout the story, but he is known to be Overhaul's most powerful enforcers and takes parts in Shie Hassaikai raids. His first major appearance was when he guarded the Shie Hassaikai's base against a hero raid team lead by Pro Hero Ryukyu. He was defeated and restrained after Ryukyu overpowered him through her dragon form, but he managed to escape, using the Trigger drug to enhance his Quirk and break free of his bindings.

Later, Overhaul fuses with Rikiya into a huge amalgamation of muscle, and proceeds to battle Izuku and Eri. However, Eri is able to use her Rewind Quirk to heal Deku's injuries every time he uses One For All, allowing him to deal as much damage to the fused Overhaul as possible while undoing the resulting strain his body takes. When he is defeated, Eri rewinds the hybrid and splits Kai and Rikiya apart. Both villains are arrested and tied to restraining mattresses, with Rikiya's being even bigger and tougher to accomodate his tougher build.

Trivia

 * Rikiya's name contains the kanji for life (活 katsu ) , jar (瓶 kame), and power (力 chikara).
 * He shares his first name, Rikiya, with Meta Liberation Army Grand Commander, Rikiya Yotsubashi.
 * Interestingly, both of them possess Quirks that allow them to increase their strength and size.
 * Rikiya seems to represent a corruption of the third tenet of the real eight precepts of Buddhism: abstain from sexual activity.