Katherine "Kat" Grace McNamara is is an American actress. McNamara portrays the character Sonya in Maze Runner: The Scorch Trials, and will reprise her role in Maze Runner: The Death Cure.


While growing up, McNamara was an advanced student in certain subjects, resulting in her being part-homeschooled; she received her high school diploma at age 14. At age 17, McNamara graduated summa cum laude with a Bachelor of Science degree in Business Administration from Drexel University. As of November 2015, she is studying for a Master of Science degree in Applied Economics from Johns Hopkins University.

Past and Current Works

McNamara began her acting career on Broadway, appearing in A Little Night Music with Catherine Zeta-Jones and Angela Lansbury. She began guest starring on television series including Drop Dead Diva and 30 Rock. McNamara has appeared in several theatrical movies and TV series.

McNamara appeared in Maze Runner: The Scorch Trials, as Sonya, co-leader of Group B.

It was announced on May 6, 2015 that McNamara would be playing the lead character Clary Fray in Shadowhunters, the Freeform television adaptation of Cassandra Clare's best-selling book series The Mortal Instruments.

Selected Filmography


  • Matchmaker Mary (2008)
  • Sam Steele and the Junior Detective Agency (2009)
  • Sam Steele and the Crystal Chalice (2011)
  • New Year's Eve (2011)
  • Last Ounce of Courage (2012)
  • Contest (2013)
  • Tom Sawyer & Huckleberry Finn (2013)
  • Natural Selection (2014)
  • A Sort of Homecoming (2015)
  • Maze Runner: The Scorch Trials (2015)
  • Is That a Gun in Your Pocket? (2016)
  • Indiscretion (2016)
  • Maze Runner: The Death Cure (2018)


  • Law & Order: Special Victims Unit (2011)
  • Glee (2012)
  • Jessie (2012)
  • Girl vs. Monster (2012)
  • The Surgeon General (2013)
  • Happyland (2015)
  • Shadowhunters (2016)