The potential casting of The Fantastic Four is practically a hobby among Marvel Cinematic Universe fans. The options are endless, and without knowing anything more about the plot, a surprising number of A-list names have cropped up. John Krasinski's celebrated cameo in Doctor Strange and the Multiverse of Madness only seemed to whet people's appetites for what has become a long-term guessing game. The likelihood that unknowns will be cast -- to better lock them up with multi-picture deals -- doesn't change the equation one bit. For now, anything is possible, especially with the MCU making big adjustments in the wake of the ongoing writer's strike.
Source：https://www.cbr.com/fantastic-four-cast-not-as-important-story/
