Tortoise Matsumoto (トータス松本 Tōtasu Matsumoto, born December 28, 1966, as 松本敦 Atsushi Matsumoto) is the lead singer of the Japanese guitar group, Ulfuls. He has also had a couple of acting roles in TV dramas, starting with Namida o Fuite (涙をふいて) in 2000.
Trigun character Nicholas D. Wolfwood is modeled after him.
