Lexa Phelan was a miner at Mining Colony Omega Seven Tango on the planet LV-1213. An adherent of the ideals of Weyland-Yutani Corporation founders Peter Weyland and Cullen Yutani, Phelan fomented a rebellion at the colony that overthrew the United Systems Military leadership. Taking control of the installation, Phelan's tenure came to an end in 2381 when retired military man Chris Temple arrived on LV–1213 and brought with him several Xenomorphs. In the resulting outbreak, Phelan lost her life to one of the creatures.