The fourth and final season of the American television series Black Lightning, which is based on the DC Comics character Jefferson Pierce / Black Lightning, premiered on The CW on February 8, 2021. The season is produced by Berlanti Productions, Akil Productions, Warner Bros. Television, and DC Entertainment. It is set in the Arrowverse, sharing continuity with the other television series of the franchise. The season was ordered in January 2020 and production began that October, with Salim Akil once again serving as showrunner.
The season continues to follow Jefferson, now a high school principal in his second stint as the superhero Black Lightning, as he fights against local corruption in his community of Freeland. Cress Williams stars as Jefferson, along with principal cast members China Anne McClain, Nafessa Williams, Marvin "Krondon" Jones III, Christine Adams, Jordan Calloway, and James Remar also returning from previous seasons. Laura Kariuki replaces McClain as Jennifer Pierce starting with the fifth episode "The Book of Ruin: Chapter One: Picking Up the Pieces"; McClain, however, returns for the series finale.
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On January 7, 2020, The CW renewed the series for its fourth season. On the early renewal of Black Lightning as well as other series, network president Mark Pedowitz released a statement reading, "These early orders for next season give our production teams a head start in plotting out story arcs and a jump on hiring staff, and this also provides us with a strong foundation of established, fan-favorite CW shows to build on for next season." On November 20, 2020, The CW confirmed that the fourth season will be the final season of the series.
Main cast members Cress Williams, China Anne McClain, Nafessa Williams, Christine Adams, Marvin "Krondon" Jones III, Jordan Calloway, and James Remar return from previous seasons as Jefferson Pierce / Black Lightning, Jennifer Pierce / Lightning, Anissa Pierce / Thunder, Lynn Stewart, Tobias Whale, Khalil Payne / Painkiller, and Peter Gambi, respectively. This is the first season to not feature Damon Gupton as Billy Henderson. In January 2020, Gupton revealed that Henderson was not in the plans for the fourth season and that the third season would be his last as a series regular. McClain appeared in a limited number of episodes, as she planned to leave the series after the season, ahead of it being announced to be the final season. This led to the fifth episode to have her character recast to Laura Kariuki. McClain, however, returned for the finale.
In November 2020, Chantal Thuy, who portrays Grace Choi, was promoted to a series regular for the fourth season.
Filming began in mid-October 2020.
The fourth season premiered on February 8, 2021. After this, episodes began to be released weekly every Monday.
No DVR ratings are available before the seventh episode.