Loskene
Commander Loskene was a 23rd century  commander. 

In 2268, Loskene intercepted the , ordering it to leave Tholian space. The Tholians allowed the Enterprise an hour and fifty-three minutes, which the starship required to potentially rescue James T. Kirk, who was lost in spatial interphase. 

When the allotted time expired and Loskene opened fire on the Enterprise, the Enterprise returned fire, temporarily disabling Loskene's ship. They called for reinforcements and proceeded to form a Tholian web around the Enterprise. Before the web was completed, the Enterprise was able to escape and they were defeated. ()

Background information 
The voice of Loskene was contributed by Barbara Babcock, who was uncredited on-screen despite having dialogue; while the mask effects were contributed by Mike Minor.

Apocrypha
The character appeared in Peter David's Pocket TNG  Vendetta where he was present at the border patrol that intercepted the planet killer under the command of Delcara. His ship was disabled and approached by the , where he inquired whether a 'lying Vulcan called Spock' was present among the crew. After which, he warned the Starfleet ship to leave their territory while they dealt with the doomsday weapon trespassing Tholian space.

In the William Shatner novel The Return, Loskene would go on to become a notorious enemy to the Federation and even reach the rank of grand admiral. He was also noted as an enemy of James T. Kirk.

The alternate reality version of the character appeared in the "fourty-seventh" issue of the Star Trek: Ongoing series. The script's cast list calls the character "Locene", while the rest of the script uses the spelling "Loskene".

External links 
 
 

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Tholians
Military personnel