After attending the American Academy of Dramatic Arts and graduating from the American Musical Dramatic Academy in New York City, Stephen started performing stand up comedy and was propelled intro the spotlight when he was cast on "Last Comic Standing" on NBC.

Shortly after his stint on Last Comic Standing, Stephen was cast as Shrek in the Broadway Musical, "Shrek The Musical" where he worked alongside Jeffrey Katzenberg, David Geffen and Sam Mendes. This success was followed by a recurring role on the ABC Televison series "Carpoolers" with fellow Canadians Bruce McCulloch and Scott Thompson.

Stephen's career quickly intensified when he was cast as the lead role of Gustavo Rocque on Nickelodeon's series, "Big Time Rush". The series premiere was the highest-rated and most-watched live-action debut in the history of the network with 6.8 million total viewers. Due to the popularity of "Big Time Rush", Stephen became a celebrity presenter at The Kids Choice Awards and helped win a nomination for best series.

Currently, Stephen is playing the role of Pigeon Toady in the upcoming Warner Brothers animated film "Storks" directed by Nick Stoller and Doug Sweetland. Stephen stars in the film along with Andy Samberg, Jennifer Aniston, Keegan Michael key, Jordan Peele, Kelsey Grammer and more. This is Stephen's first animated film and his first theatrical film.

Stephen can often be found performing stand up at the Hollywood Improv, Upright Citizens Brigade, IO West, The Laugh Factory and The Comedy Store. Once a month on Saturday night, Stephen produces and hosts The Night Time Show at The Hollywood Improv (add comma) which is the only live late night show in Los Angeles. Guests on the Night Time Show have included Harland Williams, Nick Swardson, Laurie Kilmartin, Tom Segura and Dane Cook and many more.