The cast of Black Lightning will see some significant changes in season 4 in the form of major character exits, but most of the main cast will be back for the whole season. Cress Williams will of course be back as Jefferson Pierce/Black Lightning, as will Nafessa Williams and China Anne McClain as his superhero daughters Anissa Pierce/Thunder/Blackbird and Jennifer Pierce/Lightning. However, McClain will only appear in a limited number of episodes, and she had planned to leave the show whether or not it was picked up for season 5, according to TVLine. McClain said her exit has nothing to do with any on-set problems, it's just time for her to move on. "God is moving me in more than one way than just this show," she said in a video announcing her exit.

Other series regulars will also reprise their roles. Christine Adams will return as Lynn Stewart, Marvin "Krondon" Jones III will once again play Tobias Whale, James Remar will be back as Peter Gambi, and Jordan Calloway will return as Khalil Payne/Painkiller. Chantal Thuy, who recurred as Anissa's metahuman girlfriend Grace Choi, has been promoted to series regular for the final season.

Meanwhile, Damon Gupton, who was a series regular as high-ranking Freeland cop Bill Henderson in Black Lightning's first three seasons, will not be returning, as Henderson was shot and killed by a Markovian soldier in the season 3 finale. 

And we hope Wayne Brady will be back as bad guy Gravedigger, who survived the Pit explosion in the finale. Brady hopes he'll be back too, either for the final season of Black Lightning or for Painkiller. "I've been putting in calls. Because trust me, a brother wants to be back in the Black Lightning universe," he told Entertainment Weekly.