She has played lead and supporting roles on Hell on Wheels, The Man In the High Castle, When Calls the Heart, Candiland, Patterson's Wager, Three Weeks, Three Kids, On Strike For Christmas, Marley & Me: The Puppy Years, and Lifetime's The Client List.

Additional credits include leads on the feature Burning Mussolini, Nickelodeon's Gym Teacher: The Movie, co-starring Christopher Meloni and Amy Sedaris, Flirting with Forty with Heather Locklear and the FOX TV pilot The Virgin of Akron, Ohio.

Predator: Requiem for 20th Century Fox and Possession alongside Sarah Michelle Gellar, as well as Elegy with Ben Kingsley and Penélope Cruz and Rise of the Planet of the Apes with John Lithgow and James Franco.

Recurring roles include Battlestar Galactica, Exes & Ohs, The L Word, Stargate: SG1, Saved, DaVinci's Inquest, Whistler, Blackstone, Clue and Cartoon Network's Level Up.

[citation needed] Horsdal was nominated for four more Leo Awards for her guest starring turn on Arctic Air (2013), for Hell on Wheels and When Calls the Heart, and for Patterson's Wager.