The fictional characters of Zathras, portrayed by actor Tim Choate, were a race of 10 aliens native to the planet "Epsilon 3" (which the station was in orbit around) who appeared on several episodes of the TV series Babylon 5.

A name used by all Zathri . One " Zathras " traveled back 1000 years into the past with Sinclair to aid in the Shadow war and was present on B4 with the B5 crew to aid in its time transport for the same conflict. ( See " Zathri " )