Lhian Mendak

Admiral Lhian Mendak was a Romulan military officer who lived in the 24th century.

In 2367, Mendak was part of an operation to bring Subcommander Selok, posing as Vulcan Ambassador T'Pel, back to the Romulan Star Empire after she had resided in the Federation for some years, gathering intelligence. In order to expadite her return, Mendak arranged a rendezvous between the IRW Devoras and the USS Enterprise-D, with "T'Pel" aboard, under the pretense of conducting peace negotiations.

Following the rendezvous, "T'Pel" insisted that she beamed aboard the Devoras alone which the Enterprise crew had no choice but to accept. When the transport occured, Mendak faked a transporter accident, and the Enterprise crew believed "T'Pel" to be dead.

However, they soon discovered the truth and set out in pursuit of the Devoras in the Romulan Neutral Zone. But the Enterprise was forced to turn back when they were confronted by several more D'deridex-class warbirds. (TNG episode: "Data's Day").