Explorez Tournage, Star Wars Episode Iv et plus encore !
Note the wires running from the saber up Luke's sleeve, and down his leg (used to power the blade rotating motor in the saber handle. The blade was coated with a reflective covering which shimmered when captured on film. Eventually this would be rotoscoped over by hand to add the light blue blade)
Hrchek Kal Fas was a male Saurin from Durkteel. He was a droid trader and the cousin of Sai'torr Kal Fas, and wisely kept his bodyguard with him at all times. He was a patron in Chalmun's Spaceport Cantina when Obi-Wan Kenobi took Luke Skywalker there. He saw C-3PO in the cantina and tried to follow him, but lost him in the busy streets of Mos Eisley.