Introduced in 1971’s The Amazing Spider-Man #110, Michael Morbius was originally a Nobel Prize-winnin biologist who suffered from a rare blood condition.
That didn’t up working out, and Vin Diesel got the Angelo Mortalli role instead, but now Leto gets to play Michael Morbius instead.
Clearly Jared Leto was keen on dipping his toes into another comic book franchise beyond the DCEU.
Outside of the comics, he’s appeared in Spider-Man: The Animated Series and Ultimate Spider-Man vs. The Sinister Six, and he was also in consideration to be the villain for Blade II.