Luke Hemsworth 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 daughters.