Trevor Roy Dunn is an American bassist and composer. He came to prominence in the 1990s with the experimental band Mr. Bungle. While performing with Mr. Bungle, he would dress similar to the St. Pauli Girl. He has since worked in an array of musical styles, including with saxophonist/composer John Zorn, in Mr. Bungle guitarist Trey Spruance's Secret Chiefs 3, and with his own avant-garde jazz/rock ensemble Trevor Dunn's Trio-Convulsant. He is also a member of the bands Fantômas and Tomahawk alongside Mr. Bungle frontman Mike Patton.