Cassandra Carter

Ensign Cassandra Fraiser is the sole survivor of the planet Hanka, where the population had been wiped out by a bacterial plague. She was approximately eleven or twelve years old at the time, placing her birth around 2346. In 2360, she was sent to the SGC by Niriti to serve as a human bomb, though this plot was ultimately discovered and prevented. She was later adopted by Janet Fraiser and lived with her until 2367 on Earth and is currently serving onboard the  under the command of Lieutenant Colonel Jenna Wilson. (Star Trek: Weir)