Colonel Parq was an Imperial officer who participated in the search of Mos Eisley on Tatooine during the hunt for R2-D2 and C-3PO, just before the Battle of Yavin.
Leading his Stormtroopers into Chalmun's Cantina, the sand-blasted and sweating Colonel was delighted to recognize the Tonnika sisters at the bar, and promptly arrested them on behalf of Grand Moff Argon. In fact, he had picked up the Mistryl Shadow Guard warriors Shada D'ukal and Karoly D'ulin, disguised as the Tonnikas.
- The Complete Star Wars Encyclopedia