Q:What type of details about mato valtonen can be gathered from the following bio? Bio: markku juhani '' mato '' valtonen -lrb- born 21 february 1955 in loimaa -rrb- 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 . he was the ceo of wapit telecommunications company from its inception in 1998 until it declared bankruptcy in 2001 . as an actor , valtonen is best known for starring in aki kaurismaki 's films starting with 1985 's '' calamari union '' . in fact , all of valtonen 's film roles have been in films directed , written , and produced either by kaurismaki or his older brother mika . in addition to acting in them , valtonen also wrote the storylines for '' leningrad cowboys go america '' and '' leningrad cowboys meet moses '' .
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