Octavia Blake is a major character in the first, second, third, fourth, fifth, sixth, and seventh seasons. She is portrayed by starring cast member Marie Avgeropoulos and debuted in the series premiere. 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 pilot episode, when the dropship first arrived on Earth, she is the first member of the Ark to step foot on the ground in 97 years, marking their success by...
