Korax was the Klingon executive officer of the IKS Gr'oth, serving under the command of Captain Koloth in 2268. As a product of 22nd century genetic engineering, Korax was descended from Klingons affected with the Augment virus created in 2154. (ENT: "Divergence")
While drinking in a bar while on shore leave aboard Deep Space Station K-7, Korax and a number of his crew traded insults with Montgomery Scott and Pavel Chekov and a number of the crew of the USS Enterprise, who were also on the station. The insults, including calling Captain James T. Kirk a "Denebian slime devil" and calling the Enterprise a "garbage scow", eventually ignited an all out brawl between the Starfleet and Klingon crews, including Miles O'Brien and Julian Bashir from DS9. (TOS: "The Trouble with Tribbles"; DS9: "Trials and Tribble-ations")
- TOS: "The Trouble with Tribbles"
- TAS: "More Tribbles, More Troubles"
- DS9: "Trials and Tribble-ations" (stock footage)