Michelle Langstone is a New Zealand actress, writer, and author who has been in many films and television series over the years in both New Zealand, and in Australia. She starred as Dr. Katherine "Kat" Manx in the television series Power Rangers S.P.D., and later appeared as Master Guin in Power Rangers Jungle Fury. She also featured as Livia in 2008 action fiction series Legend of The Seeker. Her debut book, the memoir Times Like These: On Grief, Hope, and Remarkable Love, was published by Allen and Unwin in May 2021.