Ensign Williams was a Starfleet officer serving aboard the USS Enterprise-D in 2366.
Ensign Williams was in the same figure drawing class as Captain Jean-Luc Picard and Lieutenant Wright, shortly before the Enterprise-D arrived at Tanuga IV, painted a picture that was inspired by geometric constructivism. According to Data, Williams' "striking style was heavily influenced" by the artistic movement. (TNG: "A Matter of Perspective")
Ensign Williams was played by Dan Sachoff who received no credit for his appearance.