Luke Hemsworth (born 5 November 1981) is an Australian actor who is known for his roles as Nathan Tyson in the TV series Neighbours and as Ashley Stubbs in the HBO sci-fi series Westworld.
Hemsworth was born in Melbourne, the eldest son of Leonie (née van Os), an English teacher, and Craig Hemsworth, a social-services counselor. His younger brothers are actors Chris and Liam Hemsworth. His maternal grandfather is a Dutch immigrant, and his other ancestry is English, Irish, Scottish, and German. He has been married to Samantha Hemsworth since 2007, and they have three children together: Ella, Holly, and Harper Rose.
Hemsworth trained in acting at the National Institute of Dramatic Art. In 2001, he started his career on the Australian soap opera Neighbours as Nathan Tyson. Mainly a television actor, Hemsworth has appeared in TV series such as The Saddle Club, Blue Heelers, Last Man Standing, All Saints, and Satisfaction. In 2012, he starred in the 6-part miniseries Bikie Wars: Brothers in Arms as Gregory "Shadow" Campbell. He is set to star in the upcoming Australian war film The 34th Battalion as Robinson.