Kathryn McDonnell
From Tardis Wiki, the free Doctor Who reference
Kath McDonnel' was captain of the S.S. Pentallian. Her ship collected energy from a sun, unaware that it was actually a living being and that removal of the energy caused it great pain. The life form, angry with them for mining its heart, sent the ship colliding towards its surface and began killing the crew after taking possession of McDonnell's husband, Hal Korwin, soon followed by Dev Ashton. McDonnell sacrificed herself to save her crew by opening an airlock and sending both herself and her husband drifting towards the sun. (DW: 42)
