T. Matalas was an United Earth Starfleet officer in the 22nd century.
In January of 2155, Matalas worked in Spacecraft Analysis at the Fleet Operations Center on Earth. Matalas' office was located in room 1109. (ENT: "Demons" set artwork)
Matalas' name was seen on directory listings seen on the set of "Demons".
T. Matalas was named after Enterprise production associate Terry Matalas.