Letek was a Ferengi who served under DaiMon Tarr in 2364. Letek was part of Tarr's crew that participated in the theft of a T-9 energy converter from Gamma Tauri IV. Letek later beamed down to a planet in the Delphi Ardu system with Mordoc and Kayron when their Marauder was immobilized above the planet by a powerful force field. Letek was part of Commander Riker's memories while being infected on the surface of Surata IV and treated in sickbay. (TNG: "Shades of Gray" )