Drew was born in Vancouver, British Columbia, Canada on April 29th 1986. His father, Philip Mostowich, was born in Calgary, Alberta, and found success in commercial real estate. His mother, JoAnne Peters, was born in Regina,Saskatchewan, and worked as a secretary until Drew was born. He moved to Toronto with his family in 1990. He began acting after graduating from Toronto Film School. Drew also graduated from Algonquin College for Aviation Management and is a fully licensed Commercial Pilot.