Canadian film director known for his contributions to science fiction television, he co-created the acclaimed series "Stargate SG-1," "Stargate Atlantis," and "Stargate Universe." Beginning his career as a writer and producer, he played a pivotal role in expanding the Stargate franchise. His work is characterized by imaginative storytelling and complex character development. Additionally, he created the series "Travelers," further cementing his reputation in the sci-fi genre.