Kelleux was a 23rd century Klingon individual, an officer in the Klingon Empire's Defense Force military. Kelleux's specialty was as an engineer. (TOS video game: Starfleet Command) No history or fate is established for this character as its name was randomly selected for a chief engineer by the game software. The name's original source was from the board game Star Fleet Battles by Amarillo Design Bureau. The design staff would have alternate persona and often just replace the first letter of the last name with a K for a Klingon name. Most of the staff served upon the IKV Thunderchild.