Generation to be directed by Bole, who had previously worked on shows such as V and The Six Million Dollar Man. Colm Meaney made his second appearance in The Next Generation after he originally appeared in the pilot, "Encounter at Farpoint", as a conn ensign on the bridge. In this episode he played a security ensign, as it was not until season two that he began to play the recurring character of Miles O'Brien, who would later become a series regular on Star Trek: Deep Space Nine. Another Deep Space Nine actor who made his first Trek appearance in this episode was Marc Alaimo, who played an Antican who was unnamed on screen, but referred to in the script as Badar N'D'D. Alaimo went on to play several other roles in The Next Generation including as the Cardassian Gul Macet in "The Wounded", before being cast as Gul Dukat in DS9. John Durbin appeared as the Selay leader, and would also go on to appear as a Cardassian later in the series, as Gul Lemec in "Chain of Command". Kavi Raz played Assistant Engineer Singh, although as he was unavailable for a re-shoot, in one scene he was replaced by a wig on a chair. Make-up and costuming The Selay and the Anticans were nicknamed the "snakes and the dogs" by the production staff. The designs were created by Andrew Probert, who had previously been responsible for the design of the Enterprise-D. The makeup used on them were created by supervisor Michael Westmore, which involved full headpieces and hands for two Anticans and five Selays. Because of the limited space available, the Anticans were made internally in the Paramount makeup studio while the Selays were outsourced to a different studio to sculpt the head. Once completed, a mold was made of the Selay head and the unpainted pieces were cast in latex and sent to Westmore to complete. It was intended to cast them out of lightweight polyurethane, but the first batch of Selay heads came out very heavy. Westmore had time to re-cast two of the heads from soft foam rubber, but as each took five hours to make, there was not enough time to re-make all five. The heavier versions of the Selay heads were worn by actors in the background of the scenes, although Westmore described them as being "very uncomfortable". The Antican mask did not allow