Sybo was an Argelian woman and the wife of Prefect Jaris. As a descendant of the priestesses before the Great Awakening, Sybo was among the few with the ability to conduct the Argelian empathic contact, a method of discovering hidden feelings and the truth about crimes. Sybo employed the method to find out the truth about three murders in 2267, of which Montgomery Scott stood accused. Sybo was played by Pilar Seurat.