I don't believe the supposed leaked list, but to call any of the remaining 4 characters a 'literal who' is laughable.
Erdrick, by far, has the most referenced and arguably influential Dragon Quest game in his series, to the point it's still referenced nearly 30 years later by all sorts of things in Japan. **** the 'it's not popular in America' argument.
Ryu Hyabusa is legit THE last big 3rd Party NES character left. Outside of characters who most likely wouldn't get in like Uncle Scrooge from Disney, Ryu Hyabusa is THE guy.
Doom Marine is the grandfather of the FPS genre. That alone should speak volumes to realize he's literally the great grandaddy of any schutt gaem.
And Steve is, well, it's Steve. Minecraft made a generation of gamers, and is the 2nd most successful gaming franchise of all time behind Tetris.
Do I think the list is real? No.
But all 4 of these characters are gaming icons in their own right.