Bill Van Dijk Born December 22 1947 In Rotterdam Is A Dutch Singer And Musical Performer. He Is Known For His Rendition Of The Wilhelmus The National Anthem Of The Netherlands . He Performed Voices On Sesamstraat The Dutch Co-Production Of Sesame Street. Van Dijk Did The Voices Of Roosevelt Franklin Clementine And Many Of The Rock Singers On The Show Such As Little Chrissy And Bip Bipadotta . He Was Active On Sesamstraat Until The Early 1990s. He Also Provided The Voice Of Clopin In The Dutch Version Of Disney's The Hunchback Of Notre Dame De Klokkenluider Van De Notre Dame In 1996.