While on Earth, she faced many challenges: learning to be free, fighting for the survival of the Delinquents, trying to get into Mount Weather and save her friends, stopping A.L.I.E., losing Lincoln, and keeping 1,200 people together peacefully in one bunker.

She is part of the original 100 and was sent to juvenile lockup for being a second child which was against the law on The Ark. In the first season, Octavia often helped Clarke as a medical assistant and collected information on the Grounders for the Delinquents. She is portrayed by starring cast member Marie Avgeropoulos and debuted in the series premiere. Octavia Blake is a major character in the first, second, third, fourth, fifth, sixth, and seventh seasons. You swore an oath to fight for all mankind.