| Sight Unseen | 2025 | Actress | Gina Mathison |
| Tracker | 2024 | Actress | Mallory Banks |
| Christmas on Cherry Lane | 2023 | Actress | Olivia Sawyer |
| Transplant | 2023 | Actress | Marissa |
| It's a Wonderful Knife | 2023 | Actress | Gale Prescott |
| Unexpected Grace | 2023 | Actress | Audrey |
| Mixed Baggage | 2022 | Actress | Lianne |
| The Gift of Peace | 2022 | Actress | Joyce |
| Ghosts | 2022 | Actress | Liz |
| Night of the Animated Dead | 2021 | Actress | Barbara (voice) |
| The Green Sea | 2021 | Actress | Simone |
| The Long Island Serial Killer: A Mother's Hunt for Justice | 2021 | Actress | Shannan Gilbert |
| The Order | 2019–2020 | Actress | Vera Stone |
| Carter | 2019 | Actress | Willow Harlow |
| Little Dog | 2018–2019 | Actress | Ginny Ross |
| Where We Disappear | 2019 | Actress | Lubov |
| Bad Times at the El Royale | 2018 | Actress | Auntie Ruth Pugh |
| The Arrangement | 2017–2018 | Actress | Hope Declan |
| Undercover Angel | 2017 | Actress | Robin Bladen |
| Rosewood | 2017 | Actress | Naomi Bauer |
| A.R.C.H.I.E. | 2016 | Actress | Brooke |
| Countdown | 2016 | Actress | Julia Baker |
| Iteration 1 | 2016 | Actress | Anna |
| How to Plan an Orgy in a Small Town | 2015 | Actress | Alice Solomon |
| The Girl in the Photographs | 2015 | Actress | Janet |
| Hannibal | 2014–2015 | Actress | Margot Verger |
| Rookie Blue | 2015 | Actress | Detective Frankie Anderson |
| 88 | 2015 | Actress | Gwen |
| See No Evil 2 | 2014 | Actress | Tamara |
| Primary | 2014 | Actress | Andrea Bialy |
| Being Human | 2013–2014 | Actress | Suzanna Waite |
| Psych | 2008–2014 | Actress | Priscilla Morgenstern |
| Torment | 2013 | Actress | Sarah Morgan |
| Lawrence & Holloman | 2013 | Actress | Zooey |
| Cinemanovels | 2013 | Actress | Charlotte |
| Cedar Cove | 2013 | Actress | Cecilia Rendall |
| The Spirit Game | 2013 | Actress | Kate Fox |
| 13 Eerie | 2013 | Actress | Megan |
| Eve of Destruction | 2013 | Actress | Calla |
| Victims | 2013 | Actress | Lindsay Hayden |
| Motive | 2013 | Actress | Leanne Heatley |
| Goodnight for Justice: Queen of Hearts | 2013 | Actress | Lucy Truffaut |
| Random Acts of Romance | 2012 | Actress | Bud |
| The Movie Out Here | 2012 | Actress | Danielle |
| Flashpoint | 2012 | Actress | Madeleine 'Maddie' Sullivan |
| American Mary | 2012 | Actress | Mary Mason |
| Endgame | 2011 | Actress | Danni |
| Health Nutz | 2011 | Actress | Jennifer |
| Vampire | 2011 | Actress | Lapis Lazuli |
| Smoke Screen | 2010 | Actress | Wife |
| 30 Days of Night: Dark Days | 2010 | Actress | Stacey |
| Hard Ride to Hell | 2010 | Actress | Kerry (as Katherine Isabelle) |
| Frankie & Alice | 2010 | Actress | Paige |
| Sins of the Mother | 2010 | Actress | Ivy |
| Favourite People List | 2009 | Actress | Denise Moynahan |
| Beyond Sherwood Forest | 2009 | Actress | Alina |
| The Good Wife | 2009 | Actress | Cindy Lewis |
| The Assistants | 2009 | Actress | Paulette Reubin |
| Rampage | 2009 | Actress | Beauty Staff #2 |
| Hostile Makeover | 2009 | Actress | Cherise Smithsonian |
| Killer Hair | 2009 | Actress | Cherise |
| The L Word | 2009 | Actress | Marci Salvatore |
| Heartland | 2009 | Actress | Mindy Fanshaw |
| Mail Order Bride | 2008 | Actress | Jen |
| Sanctuary | 2008 | Actress | Sophie |
| The Englishman's Boy | 2008 | Actress | Norma Carlyle |
| Ogre | 2008 | Actress | Jessica |
| Another Cinderella Story | 2008 | Actress | Bree |
| Supernatural | 2007 | Actress | Ava Wilson |
| Rapid Fire | 2006 | Actress | Amber |
| Reunion | 2006 | Actress | Courtney |
| Everything's Gone Green | 2006 | Actress | Heather |
| Engaged to Kill | 2006 | Actress | Maddy Lord |
| Eight Days to Live | 2006 | Actress | Lucinda Klunn |
| Stargate SG-1 | 2006 | Actress | Valencia |
| Young Blades | 2005 | Actress | Celeste Le Rue |
| Earthsea | 2005 | Actress | Yarrow |
| Ginger Snaps Back: The Beginning - Deleted Scenes | 2004 | Actress | Ginger |
| Ginger Snaps 2: Unleashed - Deleted Scenes | 2004 | Actress | Ginger |
| Show Me | 2004 | Actress | Jenna |
| The Life | 2004 | Actress | Amber Reilly |
| Ginger Snaps Back: The Beginning | 2004 | Actress | Ginger |
| The Last Casino | 2004 | Actress | Elyse |
| Bury the Lead | 2004 | Actress | Petrel |
| Ginger Snaps 2: Unleashed | 2004 | Actress | Ginger |
| Smallville | 2003 | Actress | Sara Conroy |
| On the Corner | 2003 | Actress | Stacey Lee |
| Falling Angels | 2003 | Actress | Lou Field |
| Freddy vs. Jason | 2003 | Actress | Gibb |
| Carrie | 2002 | Actress | Tina Blake |
| John Doe | 2002 | Actress | Shayne Pickford |
| The Secret Life of Zoey | 2002 | Actress | Kayla |
| Due East | 2002 | Actress | Reba |
| Insomnia | 2002 | Actress | Tanya Francke |
| Mentors | 2002 | Actress | Anne Sullivan |
| The Outer Limits | 2002 | Actress | Tammy Sinclair |
| Shot in the Face | 2001 | Actress | Erin |
| Turning Paige | 2001 | Actress | Paige Fleming |
| Bones | 2001 | Actress | Tia |
| Ginger Snaps: Being John Fawcett Video | 2001 | Actress | Sellf |
| Night Visions | 2001 | Actress | Vicki (segment "Rest Stop") |
| Spooky House | 2001 | Actress | Mona |
| The Chris Isaak Show | 2001 | Actress | Melissa |
| Josie and the Pussycats | 2001 | Actress | Laughing Girl |
| The Immortal | 2001 | Actress | Taurez |
| Ginger Snaps: Deleted Scenes | 2000 | Actress | Ginger |
| The Fearing Mind | 2000 | Actress | Josie Hogan |
| Ginger Snaps | 2000 | Actress | Ginger |
| Snow Day | 2000 | Actress | Marla |
| First Wave | 1998–1999 | Actress | Denise |
| Da Vinci's Inquest | 1998–1999 | Actress | Madeline Marquetti |
| The Net | 1999 | Actress | Malika (as Katherine Isobel) |
| Disturbing Behavior: Deleted Scenes Video | 1999 | Actress | Lindsay Clark |
| Disturbing Behavior | 1998 | Actress | Lindsay Clark |
| Voyage of Terror | 1998 | Actress | Aly Tauber |
| The X-Files | 1998 | Actress | Lisa Baiocchi |
| Madison | 1997 | Actress | Allysia Long |
| Married to a Stranger | 1997 | Actress | Lacey Potter (as Katharine Isobel) |
| Titanic | 1996 | Actress | Ophelia Jack (as Katharine Isobel) |
| The Prisoner of Zenda, Inc. | 1996 | Actress | Fiona (as Katherine Isobel) |
| Salt Water Moose | 1996 | Actress | Josephine 'Jo' Parnell (as Katharine Isobel) |
| Goosebumps | 1996 | Actress | Kat Merton (as Katherine Isobel) |
| Lonesome Dove: The Series | 1995 | Actress | Francis Maitland (as Katherine Isobel) |
| Children of the Dust | 1995 | Actress | Young Rachel (as Katherine Isobel) |
| Knight Moves | 1992 | Actress | Erica Sanderson (as Katherine Isobel) |
| The Ray Bradbury Theater | 1992 | Actress | Mink Morris (as Katharine Isobel Murray) |
| Yes Virginia, There Is a Santa Claus | 1991 | Actress | Virginia O'Hanlon (as Katherine Isobel) |
| Neon Rider | 1990 | Actress | Maxine 'Max' Forrest (as Katie Murray) |
| A Klondike Christmas | 1990 | Actress | Angora (voice, as Katie Murray) |
| Burning Bridges | 1990 | Actress | Emily Morgan (as Katie Murray) |
| MacGyver | 1989 | Actress | Violet (as Katie Murray) |
| Magic Hour: Tom Alone | 1989 | Actress | Sarah Bradshaw (as Katie Murray) |
| Immediate Family | 1989 | Actress | Birthday Girl Carrie (as Katie Murray) |
| The Last Winter | 1989 | Actress | Winnie Jamison (as Kate Murray) |
| Cold Front | 1989 | Actress | Katie McKenzie (as Katie Murray) |
| Cousins | 1989 | Actress | Chloe Hardy (as Katie Murray) |
| Better Off Short | 2024 | Self | Self |
| Supernatural Then and Now | 2022 | Self | Self |
| Eli Roth's History of Horror | 2020 | Self | Self |
| Arts in Context | 2012 | Self | Self |
| An American Mary in London Video | 2012 | Self | Self |
| WiH Massive Blood Drive PSA 2011 | 2011 | Self | Self (uncredited) |
| Filmography | 2004 | Self | Self |
| The 6th Annual Leo Awards TV Special | 2004 | Self | Self - Presenter |
| Ginger Snaps Back: The Beginning: Fun on Set Video | 2004 | Self | Self |
| Ginger Snaps: Rehearsals Video | 2001 | Self | Self |
| Ginger Snaps: Auditions Video | 2001 | Self | Self |
| The Big Breakfast | 2001 | Self | Self |
| Coroner's Report TV Series | 2023 | Archive Footage | Gibb Smith (archive footage) |
| Staunch T.V. | 2018 | Archive Footage | Self (archive footage) |
| Goosebumps German DVD and Blu-Ray Commercial Video | 2015 | Archive Footage | Self (archive footage) |
| Never Sleep Again: The Elm Street Legacy | 2010 | Archive Footage | Self (archive footage) |
| Weird Sex and Snowshoes: A Trek Through the Canadian Cinematic Psyche | 2004 | Archive Footage | Ginger (archive footage) |
| Ginger Snaps Back: The Beginning: Costume Design Video | 2004 | Archive Footage | Self (archive footage) |
| Freddy vs. Jason: Deleted & Alternate Scenes | 2004 | Archive Footage | Gibb (archive footage) |