Seizō Katō

was a Japanese actor, voice actor and narrator who worked for Haikyo (Tokyo Actor's Consumer's Cooperative Society).

Kato was born in Tokyo. He was noted for his role as Megatron and Galvatron from the 1st Transformers series until ''Transformers: The Headmasters''. He also did the ADR for Takeshi Katō's character in Akira Kurosawa's ''Ran'' after the original actor had become injured.

He died of bladder cancer at a hospital in Itabashi, Tokyo. Provided by Wikipedia