M. Tarack (born reference stardate 1/81) was a Human enlisted Starfleet crewperson, serving in the navigation and sciences departments of the USS Arkadelphia on stardate 2/18, under the command of Captain Ian Vellacora. (FASA RPG module: Decision at Midnight) In the game statistics provided for the non-player characters, Tarack had 39% as a numerical rating of loyalty to Captain Vellacora, making it likely a dice roll would side Tarack with mutineers and assist them in relieving the captain of command.