Skaikru
Skaikru is a fictional political and cultural faction in the television series The 100. The term refers to the descendants of the Ark who descend to Earth after a nuclear apocalypse. Grounders refer to them as Skaikru, or the Sky People, reflecting their origin in space rather than on the planet. The Skaikru form the core of the Ark survivors who establish a society on the surface of Earth.
Origins and settlement: After the Ark’s ships bring humanity's remnants to space, a group of 100 delinquents
Culture and relations: Skaikru interacts with various Grounder clans, negotiating treaties, forming alliances, and sometimes engaging
Notable members: Clarke Griffin, Bellamy Blake, Monty Green, Jasper Jordan, Raven Reyes, and Octavia Blake are