can you mention any other works produced by him?
"Roots", "The Thorn Birds", "North & South" and "L.A. Confidential".
David L. Wolper
David Lloyd Wolper (January 11, 1928 – August 10, 2010) was an American television and film producer, responsible for shows such as "Roots", "The Thorn Birds", "North & South", "L.A. Confidential," and "Willy Wonka & the Chocolate Factory" (1971). 
what happened to the original charlie from willy wonka He became a veterinarian. what was his name in real life? Peter Gardner Ostrum. where was he from? Dallas and Cleveland. who were his parents? Dean Gardner Ostrum and Sarepta Mabel. what s the full name of the movie that he acted in? Willy Wonka & the Chocolate Factory. can you name any other actors from this movie? Gene Wilder. what character does she portray? He portrays the character of Willy Wonka. what is the movie about? It's about a underprivileged boy called Charlie who gets a golden ticket to go to Willy Wonka's chocolate factory where all his dreams come true. by whom was this directed? Mel Stuart. who was the producer? David L. Wolper.
wiki:20764011
David L. Wolper [SEP] Introduction
David Lloyd Wolper (January 11, 1928 – August 10, 2010) was an American television and film producer, responsible for shows such as "Roots", "The Thorn Birds", "North & South", "L.A. Confidential," and "Willy Wonka & the Chocolate Factory" (1971). He was awarded the Jean Hersholt Humanitarian Award at the 57th Academy Awards in 1985 for his work producing the opening and closing ceremonies of the "XXIIIrd Olympiad, Los Angeles 1984" as well as helping to bring the games to L.A. His 1971 film (as executive producer) about the study of insects, "The Hellstrom Chronicle", won an Academy Award.