David Ian Hewlett (born 18 April 1968) is an English-Canadian[2] actor, writer and director, known for his role as Dr. Rodney McKay in the Stargate science-fiction franchise.

[5] Before his acting career took off, Hewlett ran Darkyl Media, a web site design firm,[3] and also founded Fusefilm.com, a now defunct internet community for filmmakers.

[6] Hewlett has appeared in many low-budget horror films, such as The Darkside and the minor cult favourites Scanners II: The New Order and Pin.

He played Larry Tolson, a patient suffering from a form of psychosis who is shot and wounded before being taken into police custody as a murder suspect.

In 2017, he made "HEWLOGRAM," a sci-fi comedy short showcasing the filmmaking and special effects tools of Red Giant.

[15] When he's not filming, Hewlett volunteers as a parent sponsor of a school PC/Tech club for kids interested in 3D printing, programming and repurposing tech equipment.