Terry Matalas was a Human living in the late 20th century.
In 2000, Matalas' name was mentioned on the Millennium Gate Project's poster. (VOY: "11:59")
This character was only mentioned in writing.
He was presumably named after Voyager production associate and eventual Picard showrunner Terry Matalas.
The poster can be read clearly at YourProps.com. [1]