Sebastian Spence was born in St. John's Newfoundland to late Canadian playwrights Michael Cook and Janis Spence. At the age of 16 Spence was introduced to professional theatre by his mother who wrote a part for him in her play "Walking to Australia" and directed him in many other local productions "the family business" she would say. Spence booked his first film role in the critically acclaimed "Boys of St. Vincent" which won best TV mini-series at the Cannes Film Festival. From there he made a name for himself starring alongside Charles Bronson in the CBS made for TV series "Family of Cops l, ll and lll" before landing the starring role in Francis Ford Coppola's "First Wave."
Spence has starred in countless TV and film productions such as "Battlestar Gallactica," "X-Files," "Supernatural," "Smallville," "Emily Owens MD" and feature film "Firestorm" for 20th Century Fox. Spence has shot TV series leads with Keith Carradine in "Fast Track" for Showtime, WB's hit show "Dawson's Creek" with Katie Holmes and CBC's "Sophie Parker" just to name a few.