Curiosidades

He has played the same character (Rodney McKay) in three different television series: Stargate SG-1 (1997), Stargate: Atlantis (2004) and SGU Stargate Universe (2009).

Originally appeared as "Dr. Rodney McKay", as a one-time guest star in the Stargate SG-1 (1997) episode, 48 Hours (2001). He was then invited back for the Season Six premiere, episodes Redemption: Part 1 (2002) & Redemption: Part 2 (2002), the following season. When the shows creators were casting for the spin-off series, Stargate: Atlantis (2004), he was originally called in to read for a different role. However, he returned to the "Stargate franchise" as McKay, only this time, he was a series lead in the smash hit, Stargate: Atlantis (2004).

He is a big fan of Doctor Who (1963). His favourite Doctor was Tom Baker.

Older brother of Kate Hewlett.

Used to run an Internet media company, Darkyl, with his sister in Toronto.

2009 - now a US citizen.

With his girlfriend Jane Loughman, he adopted a dog from a local animal shelter which was scheduled for being euthanized. The Rottweiler-Terrier mix, Mars the Dog, is one of the stars of David and Jane's comedy feature film Que Osso Duro de Roer (2007).

Wed Jane Loughman on June 21, 2008 in Warwick, England.

Son, Sebastian Flynn Loughman Hewlett, born on October 6, 2007, with his fiancée Jane Loughman.

Went to high school with director Vincenzo Natali and has appeared in five of his films. Had worked with Andrew Miller and suggested him to Natali for Cubo (1997).

Engaged to Jane Loughman on December 25, 2006.

He played Madison Bell's uncle in Stargate: Atlantis (2004) and her father in Planeta dos Macacos: A Origem (2011).