Zera was a Human woman, a citizen of the Eternal Empire based on Zakuul. As a member of the Knights of Zakuul, she worked alongside Knight-Captain Senya Tirall, who had rescued Zera on numerous occasions. Deeply loyal to Senya, Zera was requested by her to turn against her own empire and become a member of the Alliance during the war against Zakuul.
Zera's character is featured in "The Nathema Conspiracy" flashpoint only if the player chose the Dark Side path and killed Senya Tirall in Star Wars: The Old Republic: Knights of the Eternal Throne. Should this occur, Zera will attempt to avenge Senya by attacking the Commander and enlisting in the Order of Zildrog, under the leadership of Vinn Atrius. Ultimately, she is sacrificed on Nathema by GEMINI 16 as a power source to resurrect Zildrog. Conversely, if the player chooses the Light Side option, Senya survives, and Zera, lacking any motivation for vengeance, is replaced by the character Chela Nayss.