"Only a fool fights in a burning house!"
– Kang, 2268

Kang was among the most influential leaders and feared diplomats in the Klingon Empire during the late 23rd and early 24th centuries. He is known in Federation history for his long friendships with Kor, Koloth, and Curzon Dax, and as an adversary of Starfleet Captain James T. Kirk.

As a product of 22nd century genetic engineering, Kang was descended from Klingons affected with the Klingon augment virus created in 2154. By the 2290s, Kang was outwardly cured of this affliction either through medical treatment, cosmetic surgery, or a combination of both.

Throughout his illustrious career, Kang played key roles in many legendary battles against the Federation, both on the battlefield and at the negotiation table. As a result of his prowess, Kang's status within the Empire was revered to the extent that he achieved the status of a Klingon Dahar Master. His glory further succeeded him, after his death in 2370, when he earned his own statue among the Hall of Heroes on Qo'noS.

Kang wed his wife, Mara, prior to 2268; she later served as Kang's science officer aboard his battle cruiser during the late 2260s. By 2290, Kang had his first son, whom he named Dax, in honor of his friend, the Federation ambassador to Qo'noS, Curzon Dax.