Mats Mikael "Micke" Dubois (25 February 1959 – circa 30 November 2005), also known as Svullo, was a Swedish actor and comedian.

Micke Dubois was born in Stockholm. He began his career when he entered an air guitar competition, where he came third (he actually played air bass and called himself "Sweden's only professional air bassist"). He later started performing at various rock clubs under the artist name Captain Freak.