Carl Gottlieb is an American screenwriter, actor, comedian, and executive. He is best known for co-writing the screenplay for Jaws and its first two sequels, as well as directing the 1981 film Caveman. From Wikipedia
Dreyfuss alleges inaccuracies in “The Shark Is Broken,” suggest show's creators, including Steven Spielberg and Carl Gottlieb, spread feud rumors, with Dreyfuss stating he was never consulted for his own character portrayal.