Ghrath (portrayed by Tom Wright) was a minor character in Star Trek: Enterprise. Appearing in the Season 4 premiere "Storm Front", he was a Na'kuhl serving under Vosk in the Temporal Cold War.
In an alternate timeline created by multiple temporal incursions by various factions in the Cold War, the Na'kuhl assisted the Nazis during World War II, allowing them to conquer the East Coast of the United States. In 1944, the Nazis captured Starfleet Captain Jonathan Archer, who had been transported back to this time period, when their convoy was ambushed, allowing Archer to escape. Ghrath was ordered to search for the missing captain and later suspected Vic, an American resistance fighter, of providing assistance to the ambush. Archer later discovered that Ghrath regularly obtained information about both the resistance and the Gestapo from Joe Prazki. Ghrath was shot and killed by Sal after Archer interrogated him about the Na'kuhl's presence in Earth's past.