The seventh and final season of the American post-apocalyptic science fiction drama The 100 premiered on May 20, 2020, on The CW, for the 2019–20 United States network television schedule.

The series, developed by Jason Rothenberg, is based on the novel series of the same name by Kass Morgan, and follows a group of post-apocalyptic survivors, chiefly a group of criminal adolescents, including Clarke Griffin (Eliza Taylor), Bellamy Blake (Bob Morley), Octavia Blake (Marie Avgeropoulos), Raven Reyes (Lindsey Morgan), and John Murphy (Richard Harmon).

On September 19, 2019, Alaina Huffman was cast as Nikki, a character described as being "a bank robber and spree-killer who is both unpredictable and fierce.

[22] In the series finale, Paige Turco and Alycia Debnam-Carey both returned in guest appearances in the roles of Abby Griffin and Lexa, respectively.

"[30] From CBR.com, Sam Stone also praised the series for its cast, and suspenseful story, stating that "The 100's new season hits the ground running—literally—barely giving its characters and, by extension, its audience, the chance to breathe as the stakes are raised once again.