Kav grew up on Betazed and initially did not consider leaving home. After her parents and younger brother were killed in a shuttle crash when she was seventeen, however, she decided to join Starfleet to make the most of her life.
During her first few weeks at Starfleet Academy she considered leaving and even packed her bags a number of times, but this eventually faded. She entered Operations track because it was the fastest way to get an assignment to a starship. Her first tour of duty was aboard the USS Obsidian. (STO mission: "First Contact Day")
In 2409 she was at Deep Space 9 on a layover between assignments, waiting for the USS Tempest to collect her, when 2,800 Jem'Hadar warships under First Kar'ukan emerged from the Bajoran wormhole and attacked the station. After Starfleet evacuated, she volunteered at the temporary base of operations in the city of Hathon on Bajor, where she met Captain Va'Kel Shon. After he was given command of the Enterprise-F, he recruited her into his command crew. (STO missions: "Of Bajor", "First Contact Day")
Despite her rank insignia, in early appearances on Bajor Jirelle Kav is identified as an ensign.
|USS Enterprise-F personnel|
|25th century (from 2409)||Jirelle Kav • Kyona • Phillipa Matthias • Kirayoshi O'Brien • Savel • Va'Kel Shon • Tem Inasi • Samuel Winters|
|alternate timeline 2382-2388||Krueger • Geordi La Forge • Tom Paris • Jean-Luc Picard • William T. Riker • Deanna Troi|
|alternate timeline 2408||Blair • Data • Hauman • Lamont • Margolin • Tucker|