Katherine "Kat" Grace McNamara (born November 22, 1995) is an American actress. She is known for her role as Harper Munroe on the MTV comedy series Happyland, and for her lead role as Clary Fray on the Freeform fantasy series Shadowhunters.
Known For: Acting
Place of Birth: Kansas City, Kansas, USA
Also Known As: Katie Mac, Kat McNamara, Katie-Mac, Katherine Grace McNamara, Κάθριν ΜακΝαμάρα