Gatien was born in Kamloops, British Columbia, Canada. She is of half German descent on her dad's side. She began performing at the age of four. She trained for a number of years in dance and musical theater. She was discovered at a model/talent convention and had a number of opportunities in Asia.
In 2009, Gatien played Mia Dearden in two episodes of Smallville. Her other television credits include Supernatural, Bionic Woman, Eureka, The Guard, and roles in the films In the Land of Women and Dr. Dolittle: Tail to the Chief.
In 2010, Gatien was cast as CJ Ward in the Cartoon Network live-action series Tower Prep. She was cast in The CW's 2012 pilot The Selection based on books written by Kiera Cass; however, the pilot was not picked up to series. In 2015 Gatien played the starring role of Jamie in the 1980s horror homage film Lost After Dark.
2022
as Luna
2022
as Lena
2020
as Lily Anderson
2019
as Daria Nichols
2018
as Candice
2017
as Maggie Rennie
2017
as Haley
2016
as Annie
2016
as Ava Holland
2016
as Meadow
2015
as Sam
2015
as Natalie Swanson
2015
as Lucy
2015
as Rita
2015
as Corinne
2015
as Young Woman at Bar
2014
as Jamie
2014
as Vanessa Dougherty
2013
as Kelsey
2013
as Sophie Coburn
2013
as Heather
2012
as Madison
2010
as Stella
2010
as CJ Ward
2008
as Courtney Sterling
2008
as Megan
2007
as Tiffany
2006
as Megan
2006
as Erika Matthews
2005
as Kristen
2005
as Jenny Plum
2001
as Mia Dearden / Speedy