Spiros Aprilis completed their studies at Sun's Cross Medical School Sector 7 Campus and earned their Alien Anthropology Doctorate before moving on to support the liberation efforts in the Universal Primate Captivity Crisis. Born into the Pioneer caste of Apskellion Space Apes, Spiros's colony was sacked by a faction of Zealots, and they were taken in by the Doctors when they came to help. Now, as their mission leads them to Earth, Spiros and the Doctors are dedicated to the liberation of the primates in captivity there.