Neelix's beloved sister, killed with the rest of their family when the Metreon Cascade devastated the Talaxian moon Rinax, who appears to him in a troubling vision.
Alixia is one of the sisters of Neelix, and the member of his family he speaks of most warmly. He recalls her in the third-season Voyager episode Rise, and she appears in the fourth-season episode Mortal Coil.
She died on Rinax when the Haakonians used the Metreon Cascade to end their war with the Talaxians. Neelix has long drawn comfort from the belief that she and the others wait for him in the Great Forest, the Talaxian afterlife.
After Neelix is killed and revived by Seven of Nine's nanoprobes without having experienced anything, he undertakes a vision quest with Chakotay's help. There Alixia greets him and then tells him that the afterlife is a lie, a vision that drives him to the edge of suicide.