David Twohy is an American screenwriter, director, and producer, best known for his work in the science fiction and action genres. He gained prominence for directing the popular film series Riddick, which features the character Richard B. Riddick, played by Vin Diesel. Twohy has also written and directed other notable films, including The Arrival and Pitch Black. In addition to his film work, Twohy has contributed to various television projects and has collaborated with several prominent actors and filmmakers throughout his career. His storytelling often combines elements of suspense and adventure, making him a recognizable figure in Hollywood.