David Hewlett

David Ian Hewlett is a British-born Canadian actor, writer, and director whose career spans more than three decades across film, television, and digital media. Raised in Canada after his family emigrated during his childhood, Hewlett developed a fascination with computers, science fiction, and filmmaking—interests that would eventually shape both his creative voice and many of his on-screen roles.

Hewlett first gained attention in the Canadian film and television industry in the late 1980s and early 1990s, appearing in genre projects such as Pin, Scanners II, and the acclaimed cult-classic thriller Cube. Known for bringing intelligence, tension, and emotional nuance to tech-driven or high-concept roles, he built a reputation as a go-to actor for science fiction and psychological drama.

His most celebrated role came with the Stargate franchise, where he portrayed Dr. Rodney McKay, a brilliant but socially awkward astrophysicist. Initially introduced in Stargate SG-1, Hewlett’s performance was so well received that he was brought on as a main cast member of Stargate Atlantis (2004–2009). McKay became one of the franchise’s most iconic characters, beloved for his humor, vulnerability, and rapid-fire intellect. Hewlett’s portrayal helped define the tone of Atlantis and remains a cornerstone of his career.

Outside Stargate, Hewlett has continued to work steadily in both mainstream and independent productions. His film credits include Cube, Rise of the Planet of the Apes, The Shape of Water, and numerous genre and dramatic projects. He also writes and directs, with works such as the fan-favorite comedy A Dog’s Breakfast and the sci-fi thriller Debug, both showcasing his offbeat wit and deep affection for speculative storytelling.

In addition to his screen career, Hewlett has been involved in digital and tech communities, reflecting his long-standing interest in computers and visual effects. A self-described geek at heart, he frequently engages with fans online and at conventions, particularly within the sci-fi and Stargate fandoms.