Nathan Fillion told Collider that his top sci-fi franchise isn't what fans might expect, and it is not Firefly. He kept the name quiet for now, so the reveal remains pending.
At MCM London 2026, he and his longtime co-star weighed in on a possible Firefly return. Details stay slim, concrete plans are absent, just a hopeful hint instead.
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 once did an A-list star impression to get out of a ticket. That A-list star's name went untold.
HBO's Lanterns team joined the chatter. Fillion's Guy Gardner runs scenes next to Hal Jordan and John Stewart. The writers shared the logic.