Haley Lu Richardson (born March 7, 1995) is an American actress. Her credits include the roles of Krista in The Edge of Seventeen, Claire Benoit in Split, as well as Stella Grant in Five Feet Apart. Haley Lu Richardson was born on March 7, 1995, in Phoenix, Arizona, the daughter of Valerie, a marketing and branding professional, and Forrest L. Richardson, a golf course architect. Richardson attended Villa Montessori through Middle School, and later attended Arcadia High School. She was a regular in theatrical productions and regional dance competitions throughout the Southwest. From 2001 through 2011, she was a leading dancer in the Cannedy Dance Company based in Phoenix, Arizona. In 2011, she relocated to Hollywood, California.