Article continues below advertisementFrankie Muniz recently wrapped filming Malcolm in the Middle: Life's Still Unfair, alongside his old costars, including Bryan Cranston and Jane Kaczmarek, who reprise their roles as Hal Wilkerson and Lois Wilkerson, respectively. After being part of the four-episode series, which will air on Disney+ next year, the actor says he had an "absolute blast" being with his costars again - nearly 20 years after the series finale aired. "I have a greater appreciation for what the show was, and the impact it had on so many people.