Michael Keaton seems to be the key to unlocking the concept of the superhero multiverse. He's returning as his version of Batman from the Tim Burton films in this year's The Flash, which deals with parallel realities and multiple different versions of the Caped Crusader. He's also appearing as what we presume to be Adrian Toomes, his character from Spider-Man: Homecoming, in Morbius.
Keaton can be spotted again in the final trailer for Jared Leto's Living Vampire flick, which gives more morsels to chew on about what the heck the actor is doing in this movie.
"Michael Morbius, you've been given a gift," says Keaton, whose character is wearing a prison jumpsuit. "Time to let go of what you used to be. Discover who you're meant to be."