Nathan Fillion told Collider that his top sci-fi franchise is something else entirely, and it is not Firefly. He remained tight-lipped, so the reveal has yet to drop.
At MCM London 2026, he and Alan Tudyk dropped a small update on a possible Firefly return. Nothing was locked in, concrete plans are absent, just a glimmer of possibility.
Fillion also gave insight into The Rookie. He teased crossover plans with the North spinoff. The show's universe is slowly getting bigger with shared stories tied together loosely.
He shared a wild star impression story to get out of a ticket. He kept the star's name hidden.
HBO's Lanterns team joined the chatter. Fillion's Guy Gardner rubs shoulders with Hal Jordan and John Stewart. The writers explained the reasoning.