Newton started her career at the age of four and made her television debut with the TV series, All My Children, where she played the character Colby Marian Chandler. Her outstanding performance got her a chance in the short movie, Abbie Down East as Mahala Burgess. Later, she featured in Movies like Bad Teacher, Mono, The Pact, The Martial Arts Kid, The Pact, etc.
Moreover, Kathryn also portrayed several other characters in the TV series, Gary Unmarried, Mad Men, Supernatural, Big Little Lies, A Housekeeper's Revenge and much more. Her diligent performance in 2002 horror film, Paranormal Activity 4 earned her Young Artist Award for Best Performance in a Featured Film as Leading Young Actress.
Moving towards her personal life, Information regarding her affairs and boyfriend hasn't been revealed by her. However, she is currently assumed to be single and most probably is focusing on her career rather than being indulged in affairs.
Kathryn earns the handsome amount of money in her career. She started her career from an early age and have featured in several TV series through which she has earned wide recognition and wealth. It is estimated that her current Net worth is around $1 Million.