Mato Valtonen
Markku Juhani ”Mato” Valtonen is a Finnish actor, musician and entrepreneur. Valtonen has been a member of the Finnish band Sleepy Sleepers since 1975 and the Leningrad Cowboys since 1989.
Markku Juhani ”Mato” Valtonen is a Finnish actor, musician and entrepreneur. Valtonen has been a member of the Finnish band Sleepy Sleepers since 1975 and the Leningrad Cowboys since 1989.