This guy, gesticulating broadly with his hands, is conversing with someone just behind Albert Dreary (PJ Cameo). It looks quite a bit like Aragorn. Whether it is Viggo, Viggo's stunt double meant to be Aragorn, or just some random extra is not known.
Mark Fry currently works at the front desk of the Weta Cave. Thanks to Jack at The Noldor Blog for this identification. http://www.nznoldor.com/
Card prepared by Jack at The Noldor Blog ~ http://www.nznoldor.com/ ~ for Mark Fry to autograph.