Gruner

Gruner was a Cardassian and a councillor on the Detapa Council.

In 2372, Gruner was present at a meeting of the Detapa Council when Gul Dukat  brought them news of the Klingon invasion of the Cardassian Union. Gruner was suspicious that Dukat was actually attempting to get them off Cardassia in a ruse to get them killed, and was even more unconvinced when Dukat told them his source was Garak. 
 * Gruner only appeared in the novelization, but was likely to have been among the council members evacuated to Deep Space 9 in the episode.