Katherine Grace McNamara 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.
- Born: 22 November 1995 (age 22 years), Kansas City, Missouri, United States
- Height: 1.64 m Residence: Los Angeles, California, U.S
- Education: Drexel University
- Parents: Evan McNamara, Ursula McNamara