Kathryn Love Newton (born February 8, 1997)^[2] is an American actress best known for her role as Allie Pressman in the Netflix series The Society, Lucy Stevens in Pokémon Detective Pikachu, Louise Brooks in the CBS television series Gary Unmarried, as well as for her role as Alex Nelson in the 2012 film Paranormal Activity 4, which earned her the 2013 Young Artist Award for Best Leading Young Actress in a Feature Film.^[3] She is also known for portraying the older version of Claire Novak in the CW series Supernatural and for her role as the older Joanie Clark in the AMC television series Halt and Catch Fire.^[4]

Newton was born in Orlando, Florida,^[2] and is the only child of Robin and David Newton.^[5] She started her career at age four, making her television debut on the soap opera All My Children,^[6] playing Colby Marian Chandler from 2001 to 2004. Meanwhile, she also starred in two short films, Abbie Down East (2002) and Bun-Bun (2003).^[6] In 2008 Newton was cast in the role of Louise Brooks in the CBS television series Gary Unmarried. When she was twelve, her family moved to Los Angeles,^[7] where she attended the Notre Dame High School.^[8]

In 2010 Newton won two Young Artist Awards for "Best Performance in a TV Comedy Series" and "Best Performance in a TV series (Comedy or Drama)" for Gary Unmarried.^[9] Newton played the role of Chase Rubin-Rossi in the 2011 film Bad Teacher alongside Cameron Diaz.^[10] She had the lead role, Alex, in the 2012 film Paranormal Activity 4, the fourth in the franchise,^[11] and won an award at the 34th Young Artist Awards for her performance in the film.^[3] Beginning in season 10, she had a recurring role as Claire Novak on Supernatural. In 2017, Newton appeared in the HBO series Big Little Lies based on the Liane Moriarty novel of the same name.^[12] She also had major roles in the films Three Billboards Outside Ebbing, Missouri and Ben Is Back. In both unrelated films, she played the sister of Lucas Hedges' character.

Newton had the female lead of an adaptation of Pokémon Detective Pikachu (2019).^[13] She also plays the lead role of Allie in the Netflix mystery drama series The Society, which premiered on May 10, 2019.