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. His younger brothers, Liam Hemsworth and Chris Hemsworth, are also actors. Hemsworth is the son of Leonie Hemsworth, an English teacher, and Craig Hemsworth, a social-services councillor. He is the older brother of 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.