Prometheus "Engineer"
![Engineer](https://media.guestofaguest.com/t_article_content/wp-content/uploads/2012/07/san_diego_comic_con_13421312408296.jpg)
Most likely, this is a costume of an "Engineer," the humanoid aliens that are alleged to have created humanity (and later kill a bunch of dudes). Then again, this could also just be
Brian Urlacher, a Bears linebacker with legendary skills and slightly-less legendary taste in starlets. There'd be no way to know for certain.