Besides Schitt's Creek, Power was cast in the 2002 television miniseries based on the novel Random Passage. In 2009 she was cast in a main role on the CBC Television series Wild Roses, playing Lucy .Her film credits include Saw V (as Angelina Hoffman), Repo! The Genetic Opera (as Marni Wallace) and American Pie Presents: Beta House (as Denise).
In 2011, Power appeared in the Hallmark Channel television film The Good Witch's Family, and on the follow-up 2015 television series Good Witch, in the recurring role. Also in 2015 she began appearing in a recurring role on the Space channel television series Killjoys. In 2016 Power appeared in the recurring role on the CBS television series American Gothic.