A Starfleet security officer on the Empok Nor salvage mission who survives the Cardassian soldiers stalking the team only to be killed by Garak, whose mind has been altered by a drug.
Amaro appears in Empok Nor, played by Jeffrey King.
In 2373 he is one of two guards protecting Miles O'Brien's engineers aboard the abandoned station. After his colleague Stolzoff is killed, Amaro is assigned to watch over the Bolian engineer Boq'ta, but is lured away long enough for a Cardassian soldier to kill the man he is guarding.
Garak then appears and kills the soldier. Amaro lowers his guard, and Garak stabs him. The Cardassian tailor has been exposed to the same psychotropic compound given to the soldiers and now sees the Starfleet team as enemies. Amaro lives just long enough to tell O'Brien and Nog who attacked him, which turns the mission into a duel between O'Brien and Garak.