Born in England to a Dutch mother and British father, Cubitt was six months old when his family moved to Vancouver. While attending university, he worked on a cable music video show called Night Vision, performing in comedic sketch segments. Cubitt describes this experience as "the beginning of his love affair with acting." David studied acting full time until he was kicked out of theatre school having been told he "couldn't act and would never work." Soon afterward, Cubitt landed a leading role in the feature Alive directed by Frank Marshall, starring Ethan Hawke. Pa Alive helped spark Cubitt's career and it wasn't long before he landed a series lead role on the hit Canadian show E.N.G. Following, David starred with Eric McCormack on Lonesome Dove for one season before he was offered the hit TV series Traders, during which time he won numerous Gemini Awards and Nominations for best actor. After landing a development deal with CBS, Cubitt moved to Los Angeles where he booked the leading role of David Caruso's brother in the series Michael Hayes. Since then David has had an extensive career in television most notably as a series regular on CBS' Medium, opposite Patricia Arquette, for 7 seasons. Other television credits include roles on A&E's Bates Motel, Showtime's Ray Donovan, CTV's The Detail, Netflix's Travelers and most recently Netflix's Virgin River. Feature film credits include, Black Chicks a short written and directed by Neil Labute, for which David won a 2017 Leo Award for Best Actor. Stonewall, directed by Roland Emmerich, Shut In, opposite Naomi Watts, The Seventh Son alongside Jeff Bridges & Julianne Moore. David can next be seen in Semi Chellas' feature American Woman, which will had its world premier at the 2019 Tribeca Film Festival.