This unnamed Ralgan met with Captain Lochley during the brief seconds she was dead, drawn into the Ralgan soul vessel where they lived. He took on the form of Stephen Franklin, his image being a side-effect of Lochley needing a friendly face. He told her about how his people were not dying, rather they were evolving, but the Soul Hunters only saw their physical bodies dying and thus trapped them in their still-living, incorporeal form.
His wife was Shanalla, who died a few months before the Soul Hunters came for them.
It is possible that this same Ralgan met the Soul Hunter after he willingly entered the soul vessel, this time taking on the form of Captain Lochley for the same reason he appeared as Franklin to Lochley herself.