25+ Best Photos of Diego Klattenhoff
25+ Best Photos of Diego Klattenhoff. Klattenhoff was born in nova scotia, canada. He plays the role of a marine captain whose best friend returns to the us after disappearing in iraq seven years earlier. He was born on november 30, 1979, in french river, nova scotia, canada. His ethnicity is mixed (german, irish, welsh) and his nationality is canadian. In blacklist, he played fbi agent donald ressler.