Daro

From Memory Alpha, the free Star Trek reference.

Glinn Daro was a Cardassian officer who served aboard the Galor-class warship Trager under Gul Macet during the mid-2360s.

In 2367, he accompanied Macet aboard the USS Enterprise-D as part of the observation team in the pursuit of USS Phoenix. While on board, Daro attempted to speak to Miles O'Brien concerning the pattern buffers used in the Enterprise's transporter system, but was initially refused.

Later, he shared a drink with O'Brien in Ten Forward, where O'Brien spoke of his experience at the Setlik III massacre, something Daro described as "a terrible mistake". (TNG: "The Wounded")

Daro was played by Time Winters.