An additional day was August 8 for the blue screen unit to film the creature scenes with stuntman Rex Pierson on Paramount Stage 9. Second unit for this episode filmed on August 26 on Paramount Stages 9 and 16. When production for the following episode, "Ensign Ro", returned to location at Bronson Canyon on August 5, another sequence was filmed for "Darmok" involving Rex Pierson and photo doubles Ron Large and Lanier Edwards.