The costume is based on Tarfful the Wookie from Start Wars Episode III The Revenge of the Sith.
This costume test was to see how an 8′ 2″ wookie costume would work in a practical way. Overcoming the difficulties of running, fighting, kneeling, rough terrain, etc. whilst wearing 15 inch stilts. Shooting on a Red MX camera it was also important to see how something this large would be framed in shot with other characters and how to light it correctly.
It was made by me in my workshops in Ireland. It consists of an underskull with moving jaw which activates the sound system. There is also a muscle undersuit which bulks out the hand latch-hooked hair outersuit. The stilts are heavily modified plasterers stilts cast inside huge rubber feet that articulate when walking to help with a more natural gate.
The whole process of the costume build can be seen here-
-via YouTube Video Description