Birthplace: Tokyo City Katou Seizou was a veteran seiyuu who worked for Haikyou. He was noted for his role as Megatron and Galvatron from the first Transformers series until Transformers: The Headmasters. Katou Seizou passed away on January 17, 2014, at 11:40 a.m. in a hospital in Tokyo due to complications from bladder cancer. He was 86 years old.