Mora Neilson

The sluggish Admiral responsible for sending Aerostar to the Delta Quadrant ("Road to Nowhere" [VEX]) who one year later was found to have done it in order to lead the Borg away from Federation Space ("Process of Elimination" [VEX]) and was found out to be a changeling after Aerostar returned to the Alpha Quadrant ("Confrontations" [VEX]) and wasn't heard from again until the crew discovered her crashed Jem'Hadar ship and Dr. Browning ate a newly-formed Changeling and became impregnated; Neilson tried to kill Browning and get the Changeling back, but she was blown up sloppily with phasers ("Lost and Founder" [VEX]).