Macet
Gul Macet was a Cardassian officer in the Cardassian military, and commanding officer of the  warship Trager. 

Macet responded to the attack of a Cardassian outpost by the  in 2367. He found the outpost incinerated, and determined the attacker be a Starfleet ship, but lost track of it. He used the event as an excuse to attack the  which was near their border at the time. He claimed they were at war, now, due to the attack on an unarmed science station. In reality, it was a military facility. However, his ship proved no match for the  Enterprise-D, and he agreed to a truce after his ship was disabled.

Due to a high-level diplomatic exchange, Macet was brought on board the Enterprise-D as an observer along with Glinns Daro and Telle as it tracked down the Phoenix. Captain Jean-Luc Picard brought him in on the information, seeing that the Phoenix was believed to have gone rogue under orders from Captain Benjamin Maxwell. Macet immediately believed that Maxwell was seeking revenge for the death of his family in the Setlik III massacre. He asked that Cardassian ships be given an advantage to disable the Phoenix before it destroyed more of their people. Picard relented, but the ship continued its rampage. 

In the interests of peaceful cooperation following the recently signed treaty ending the Federation-Cardassian War, Macet punished Telle when the latter was caught attempting to access secured systems aboard the Enterprise-D. Picard didn't press the issue, which seemed to please him. Macet said he was not a man who wanted war, and thought Picard wasn't, either. 

Ultimately, the Phoenix was located and returned to Federation space. However, Picard relayed Maxwell's allegations of a renewed Cardassian buildup to Macet, warning him, "we'll be watching." ()

Appendices

Background information 
Macet was played by Star Trek veteran Marc Alaimo, who would later play a much more famous Cardassian, Gul Dukat.

Macet was the first Cardassian seen in the Star Trek saga and the only Cardassian to ever appear with facial hair. His onscreen reveal was described in the episode's script as "A Cardassian Gul (Captain) appears. These are humanoid aliens -- sleek, handsome, intense."

Apocrypha 
Macet appeared in several of the  novels, including the Gateways Deep Space Nine entry Demons of Air and Darkness, , and the Worlds of Star Trek: Deep Space Nine novella The Lotus Flower. The similarities between Macet and Dukat were explained as being due to the fact that they were cousins. However, Macet was a much more honorable man than Dukat. The Pocket DS9 story Fearful Symmetry implies that he grew facial hair as a conscious effort to lessen this resemblance. Macet joined Damar's Cardassian Rebellion and fought against the Dominion – in Demons of Air and Darkness, it was established that he commanded the fleet which attacked Rondac III in .

In Unity, the parasitic being from  tried to bond with him, but was unable to, because of a Cardassian immunity to such parasites.

In the Star Trek: Deep Space Nine - Mission Gamma novels, his first name was established as Akellen.

His mirror universe  appears in the novel Warpath and the short story "Family Matters" contained in the anthology Shards and Shadows. He was the commanding officer of the Klingon-Cardassian Alliance vessel Trager during the 2370s.

External links 
 
 

de:Macet
nl:Macet
Cardassians
Guls
Cardassian military personnel