Chihiro Yamamoto is a Japanese actress, who has played quite a few different characters in various Tokusatsu series. Her prominent role in the Ultra Series is Laiha Toba of Ultraman Geed. Chihiro Yamamoto is a Japanese actress, who has played quite a few different characters in various Tokusatsu series. Her prominent role in the Ultra Series is Laiha Toba of Ultraman Geed.