Wam HeskesActingJuly 29, 1891— August 20, 1973(82 years old)Delft, Zuid-Holland, NetherlandsPopularity: 0IMDbBiographyWillem Frederik 'Wam' Heskes (1891-1973) was a Dutch (voice) actor. He was best known for his popular radio shows, in which he often played comedic characters like Koos Koen and Juffrouw de Bonk.Known For5.4Dutch in Seven LessonsCameraman / Koos KoenFilmographyMovies1TV Shows0AllCast1CrewBrowse All1940s5.4Dutch in Seven LessonsCameraman / Koos Koen