Katou Seizou, born February 14, 1927 in Tokyo City, was a veteran seiyuu who works for Haikyou. He was noted for his role as Megatron and Galvatron from the 1st Transformers series until Transformers: The Headmasters. Katou Seizou passed away on Friday at 11:40 a.m. in a hospital in Tokyo due to complications from bladder cancer. He was 86 years old.