EVAN Rachel Wood has hit back after a fan of her hit show Westworld criticised her acting.

The person posted a message on Twitter suggesting the actress - who plays robot Dolores in the sci-fi Western - had only mastered two emotions on screen.

But Wood snapped back with a series of tweets of her own, pointing out all the challenges of shooting the programme.

She said: "Hmm. Maybe you should put on the corset in 113 degree weather, spend time away from your family, risk your life on horse-back, cry at the drop of a hat and relive your traumas over and over and over, be dragged and beaten till all hours of the night, sacrifice your childhood to work and take acting classes 5 times a week, and work your entire life fighting through criticism and sexism to make it on this show, THEN show me how its done."

She added: "Oh and while you're at it, take off all your clothes and sit here for 6 hours in perfect posture too."

Wood concluded by sharing a video clip of her character galloping off on a horse, writing: "So I am just gonna keep doing what I'm doing because its working out pretty good for me and I thoroughly enjoy it.

"Byyyyyeeeeeeee!"