Jannek was a male Romulan, the son of Keras, who was born in the 23rd century and lived well into the late 24th century. Following his father's death commanding the ChR Gal Gath'thong, Jannek served the Romulan Star Empire, and eventually became an ambassador. His interests in adulthood included hunting, and history, with a particular personal interest in Federation history and exploits of James T. Kirk. At some point in his career, Jannek established a friendly relationship with Federation Ambassador Curzon Dax.