Tadashi Sato is a Japanese manga artist best known as the creator of the comedy series Moeru! Oniisan (The Burning Wild Man). Sato was born on January 1, 1963, in Shiogama, Miyagi Prefecture. Before making his own debut, he worked as an assistant to the established manga artist Motoei Shinzawa, the creator of High School! Kimengumi.

Sato's major work, Moeru! Oniisan, was serialized in Shueisha's influential Weekly Shōnen Jump magazine from 1987 to 1991. The series follows Kenichi Kokuho, a boy raised by a martial arts master in the mountains who returns to civilization to live with his family and navigate the absurdities of city life and school. The manga proved to be Sato's greatest success and was compiled into nineteen tankōbon volumes.

The popularity of the manga led to an anime adaptation produced by Studio Pierrot. The television series, directed by Osamu Kobayashi, aired for twenty-four episodes on Nippon Television from March to September 1988. Following the series, two original video animation episodes were released in July and August 1989. The story and characters from Moeru! Oniisan were also adapted into an action video game for the Famicom, released by Toho in 1989.

In addition to Moeru! Oniisan, Sato is known to have created other manga works, including Janitor's Winding Cyborg and Kingdom of Medaka, though none achieved the same level of prominence as his debut series. His artistic identity is closely tied to the absurdist, gag-driven comedy style that was prominent in Weekly Shōnen Jump during the late 1980s. His work on Moeru! Oniisan established him as a creator within that era of the magazine, and its successful adaptation into anime and a video game cemented its status as a recognizable property of the period.