The Rookie showrunner has a funny response for the show's future after star Nathan Fillion was cast in Superman: Legacy. It was confirmed that Fillion, who plays the lead character of John Nolan on ABC's police drama The Rookie, had been chosen to play Guy Gardner (Green Lantern) in the upcoming James Gunn movie Superman: Legacy. He joins other recent castings, Edi Gathegi and Isabela Merced, who will, respectively, portray Mister Terrific and Hawkgirl. David Corenswet and Rachel Brosnahan, meanwhile, have been tapped to play Clark Kent and Lois Lane.
https://screenrant.com/the-rookie-season-6-nathan-fillion-superman-legacy-impact/