Selmour got his taste of performing during his time as a teenager at De Roberval Academy; he acted in shows as a member of La Troupe de Theatre carefully curated by Teacher/Mentor Solly Levy. Selmour completed a diploma in social sciences at Dawson College. Then he had two choices: go to New York City on a scholarship at AMDA (American Musical Dramatic Academy) or stay home in Montreal at Concordia University where the drama program was as excellent. He chose the latter. On the third year Selmour left the program. He accepted a leading role in a production by BTW, the Black Theatre Workshop a theatre company based in Montreal.

Took a break from his acting career to become a co-founder of an Event Promotion Company. It didn't take long before he returned to what he loves best, the craft of acting; a friend who lived in California suggested that Selmour gave the big league it a try.

Didn't event make it to California he took his first television role in Vancouver BC where an extension of the film and television industry has been thriving for decades.

Selmour is mostly known for his work in films like Sucker Punch, The Chronicles of Riddick, iconic films like 2012, My Boss' daughter to name a few. He has lent his voice to a number of notable short animation films on the web such as Tough West, Peaches and others.