Katherine 'Kat' Grace McNamara (born November 22, 1995) is an American actress. She is known for her roles as Harper Munroe on the MTV comedy series Happyland, and Clary Fray on the Freeform fantasy series Shadowhunters.
Known For
Jade
Layla
2024
Air Force One Down
Agent Allison Miles
2024
True Justice: Family Ties
Casey Barlowe
2024
Fool's Paradise
Terry
2023
Sugar
Chloe
2022
Dance Dads
Kassie Goodhart
2022
Love, Classified
Taylor Bloom
2022
Untitled Horror Movie
Chrissy
2021
Finding You
Taylor Risdale
2021
Trust
Amy
2021
Kappa Kappa Die
Charise
2020
Spirit Riding Free: Spirit of Christmas
Sally Jessup (voice)
2019
Assimilate
Hannah
2019
Maze Runner: The Death Cure
Sonya
2018
Charlotte
Mary (segment "Get Off My Porch")
2017
Is That a Gun in Your Pocket?
Sandy Keely
2016
Natural Selection
Paige Thomas
2016
Indiscretion
Lizzy Simon
2016
Little Savages
Tiffany
2016
R.L. Stine's Monsterville: The Cabinet of Souls
Lilith
2015
Maze Runner: The Scorch Trials
Sonya
2015
A Sort of Homecoming
Rosa Conti
2015
A Wife's Nightmare
Jackie
2014
Tom Sawyer & Huckleberry Finn
Becky Thatcher
2014
Contest
Sarah O'Malley
2013
Girl vs. Monster
Myra
2012
Last Ounce of Courage
Caroler
2012
New Year's Eve
Lily Bowman
2011
Sam Steele and the Crystal Chalice
Emma Marsh
2011
Last Will
Wedding Guest (uncredited)
2011
Sam Steele and the Junior Detective Agency
Emma Marsh
2011
Get Off My Porch
Mary
2010
Matchmaker Mary
Mary Carver
2008
Samaritan
Carly
All Roads Lead Home
Fair Goer
2008
The Queen's Jewels
Lala
Coyote
High Ground
Cassie Becker
2025
The Adventures of Bunny Bravo
Cat
2022
And Love Knocked
Emily
Montana Mavericks
Heather
2025
Walker Independence
Abby Walker · (13 episodes)
2022
One Killer Question
Self · (2 episodes)
2022
The Stand
Julie Lawry · (6 episodes)
2020
Acting for a Cause
Lydia Bennet · (1 episode)
2020
Crisis Aftermath
Self · (1 episode)
2019
Batwoman
Mia Smoak · (1 episode)
2019
Happy Together
Sara · (1 episode)
2018
Shadowhunters
Clary Fray · (55 episodes)
2016
Supergirl
Mia Smoak / Blackstar · (1 episode)
2015
The Grinder
Ginger · (1 episode)
2015
The Flash
Mia Queen / Green Arrow · (1 episode)
2014
The Flash
Mia Smoak · (1 episode)
2014
Happyland
Harper Munroe · (8 episodes)
2014
The Thundermans
Tara Campbell · (1 episode)
2013
The Fosters
Kat · (3 episodes)
2013
Radio Disney Music Awards
Self · (1 episode)
2013
Arrow
Maya / Blackster · (1 episode)
2012
Arrow
Mia Smoak · (9 episodes)
2012
Arrow
Mia Smoak / Blackstar · (10 episodes)
2012
Transformers: Rescue Bots
Priscilla Pynch (voice) · (6 episodes)
2012
Touch
Evie Woods · (1 episode)
2012
Jessie
Bryn Breitbart · (2 episodes)
2011
Unforgettable
Young Carrie Wells · (1 episode)
2011
Kickin' It
Claire · (3 episodes)
2011
Workaholics
Haley · (1 episode)
2011
R. L. Stine's The Haunting Hour
Jodanna · (1 episode)
2010
Drop Dead Diva
Ann Logan · (1 episode)
2009
Glee
Bunhead #1 · (1 episode)
2009
CSI: Crime Scene Investigation
Angela Ward / Tangerine · (1 episode)
2000
Law & Order: Special Victims Unit
Jasmine · (1 episode)
1999