episode "Tin Man" and the Magistrate in the Voyager episode "Sacred Ground". Eric Pierpoint returned as Harris, whom he had previously played earlier in the season in the episode "Affliction". Game show host Tom Bergeron made a cameo in the episode as a Coridan Ambassador. He had previously appeared as D'Marr in the first-season episode "Oasis". Filming The episode was directed by former Star Trek: The Next Generation actor LeVar Burton, his second of the season, and his ninth and final for the series. Filming began on February 4, 2005, and completed on February 14. The first day of shooting overlapped with the filming for the previous episode, "In a Mirror, Darkly". The first day was spent filming scenes involving Mayweather and Brooks, while the second day overlapped with a re-shoot of the conclusion of the episode "Bound" and inserts for "Affliction" and "Divergence". The following three days were spent on the standing sets such as the bridge and sickbay, before moving onto the standing cave sets on stage 9. These had previously been painted white for use in "The Aenar", and were repainted grey to represent the tunnels on the Moon for "Demons". The only exterior location used was an alleyway on the Paramount lot near the soundstages. The alley had previously been used as a location in the Deep Space Nine episode "Little Green Men". Production moved to the Paramount Theatre on the final day of filming, which hosted the season premieres. It was used to portray the Assembly Hall of Starfleet Command. The footage of Colonel Green was shot later, with a greenscreen placed on the monitor during the filming with Weller. Reception "Demons" was first aired in the United States on UPN on May 6, 2005. It received a 2/4% share among adults between the ages of 18 and 49. This means that it was seen by 2 percent of all households, and 4 percent of all of those watching television at the time of the broadcast. This was an increase of the overall audience share compared to the previous episode aired. IGN gave the episodes "Demons" and "Terra Prime" a combined rating of 4 out of 5. Michelle Erica Green at TrekNation described the episode as a "riveting hour of television". She thought that the episode posed the same types of ideological questions that The Original Series did on occasion and caused her to look