This Andorian was played by Enterprise production assistant Doug Mirabello who received no credit for this appearance.
From the Star Trek Encyclopedia (4th ed., vol. 1, p. 447), "On the day the scene on the Andorian bridge was to be shot, the actor who was to have been that character simply didn't show up. When our producers discovered Doug was the same size and height as the MIA Andorian, Doug was quickly pressed into emergency service in the Andorian Imperial Guard, thus earning the nickname, Blue Doug."
This Andorian was one of the survivors of the Kumari who were saved by Enterprise after the Kumari was attacked and heavily damaged by the drone ship. Alongside another Andorian officer, Commander Shran, and Lieutenant Talas, he escaped from the quarters on board Enterprise to take revenge of the Tellarites. He was shot unconscious from Captain Archer after he had a shootout in one of the corridors with several MACO's. (ENT: "Babel One")
He was one of the Andorian officers who were rescued by Enterprise and one of the spectators during the ritual fight between Commander Shran and Captain Archer on board Enterprise. (ENT: "Babel One", "United")
A female Andorian lieutenant served on board the Kumari in 2154. She reported to Commander Shran that she was able to isolate the bio sign of Soval. When Shran asked her if Enterprise would notice that they has beamed the Vulcan off their ship, she responded that the Humans would see a brief energy surge from the nebula. Later, during the interrogation of Soval, she told her Commander that the general was asking for an update. When the Kumari was attacked by the Enterprise she gave a report to Shran and asked if they should return fire but Shran ordered her to move the Andorian starships back into the nebula. (ENT: "Kir'Shara")
This Andorian lieutenant was voiced by actress Melodee M. Spevack, who was only heard over the com system and listed as "Andorian Com Voice" in the end credits.
This officer served on board the Kumari and was among the officers who were rescued by Enterprise. After hostile movements against the Tellarites aboard, he was also arrested in the quarters but escaped with Commander Shran and Lieutenant Talas. In this shootout with the MACO's he was hit and fell against the wall. (ENT: "Babel One")
This Andorian was played by stunt actor Kim Koscki who received no credit for his appearance.