Sandayū Dokumamushi (毒蝮 三太夫, Dokumamushi Sandayū) born Iyoshi Ishii (石井 伊吉, Ishii Iyoshi) on 31 March 1936 in Osaka, Japan) is a Japanese actor. He portrayed the role of Daisuke Arashi in the original Ultraman series (1966-1967) and Shigeru Furuhashi in Ultra Seven. He has been a radio personality on the Tokyo Broadcasting System (TBS) since 1969. His radio program is famous for vulgar language and is popular with an older audience.
Source: “Sandayū Dokumamushi”, English Wikipedia (CC BY-SA 4.0), excerpt