Kl'rt, Son of Krul was a young, male Klingon and member of Klahb. In 2379 he participated in the attempted takeover of the Federation Embassy on Qo'noS. Kl'rt was raised on Mempa VIII where he wrestled professionally before he was expelled for using illegal drugs. During the takeover, it was his job to capture Worf and take him to the top of the embassy where all of the hostages were to be rounded up. However, Worf realized that Kl'rt had a weapon and was able to knock him unconscious with a disruptor blast just as Kl'rt killed Carl Murphy, another embassy employee.