of his favourites. The episode was directed by David Straiton, who had previously directed "Desert Crossing". The shoot took six and a half days, which concluded on August 8, 2002. "A Night in Sickbay" was intended to be a low-cost episode as the majority of scenes required only the use of the standing sets for the series. The only credited guest star in "A Night in Sickbay" was Vaughn Armstrong, who played the Kreetassan captain once again. Armstrong is better known for his recurring role in Enterprise as Admiral Maxwell Forrest, but had previously played the Kreetassan captain in the first season episode "Vox Sola". In order to appear as the captain, some three and a half hours of make-up time was required, with the actor needed to arrive to have his make-up applied at 5:30am for his one day of shooting. Armstrong appeared in a variety of different roles in several different Star Trek programs, dating back to the Star Trek: The Next Generation season one episode "Heart of Glory". Other make-up effects during this instalment of Enterprise included a pair of prosthetic feet for Dr. Phlox, although other effects for the character were added in post-production. Porthos There were two Beagles portraying Porthos, who were supplied by Performing Animal Troupe, an animal supply company for film and television. These dogs included a female Beagle called Breezy, who was the main dog actor who played Porthos during season two. A second dog called Windy provided backup to Breezy. Breezy was the original double for male dog actor Prada who appeared in the first-season episodes of Enterprise up until "Two Days and Two Nights", when Breezy became the main dog. She had also previously appeared as Lou in the 2001 film Cats & Dogs. More than one scene proved problematic for Breezy during the filming of the episode, as the decontamination room set was an enclosed four wall set, meaning that in the scene where Archer rubs down Porthos with decontamination gel, Breezy's trainer Scott Rowe couldn't be on the set with her. Normally he would have been behind the camera assisting the director by ensuring the dog is looking wherever the scene required. He hoped that with him off the set, that Breezy would look where required and not directly at the camera. In order to prepare for the scene where Porthos leaps out of an immersion tank and