The series has main actors and actresses reprising their roles throughout the universe.
On December 10, 2020, it was announced that the series would debut in Summer 2021, as originally planned.
- Marvel Studios (10 December 2020). "Space. Time. Reality. It's more than linear path." WHAT IF…?, an Original Series from Marvel Studios, is coming Summer 2021 to #DisneyPlus.. Twitter. Retrieved on 10 December 2020.
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