Fionnula Flanagan

Actor (Enina Tandro, Juliana Tainer, V'Lar) — Deep Space Nine

Irish actor, born in 1941, who played three guest roles across three series: Enina Tandro in Deep Space Nine, Data's mother Juliana Tainer, and the Vulcan ambassador V'Lar.

Fionnula Flanagan is an Irish actor, born in 1941, whose credits include an Emmy Award for Rich Man, Poor Man and the films The Others and Waking Ned, as well as a recurring part in Lost.
Her first Star Trek role was in the 1993 Deep Space Nine episode Dax, as Enina Tandro, the general's widow whose testimony clears Curzon Dax. In the seventh-season Next Generation episode Inheritance she plays Dr. Juliana Tainer, the former wife of Noonien Soong, who regards Data as her son and does not know that she herself is an android.
In 2002 she appeared in the Enterprise episode Fallen Hero as V'Lar, a Vulcan ambassador whom Archer's crew must protect from Mazarite pursuers.