it is a very ancient and very precise science and i’m not actually that good at it, there are people out there who can tell from the eyes only and i’m not one of them

There are several clues and the most effective one is the instrument in their hands of course. It’s when they’re offstage that it gets tricky.

Second, the sign on their costume. Except for Alpha’s sign, if the Ghoul is wearing Alpha’s suit and talking, then it’s not Alpha, it’s Special (if you listen closely, Special sounds exactly like Papa but without the fake accent)

In videos, the voice is the easiest way to tell them apart. Most times it’s Omega or Special talking and they have very different voices.

Height is a good way to tell as well. Earth is the smallest, Air is the tallest, Alpha and Omega are quite tall, Water is average height? And “Mist” (new Water) is even smaller than Earth and has a smaller, more feminine frame (sometimes you can see the shadow of a boob but she’s quite flat chested so it’s not the most obvious thing)

Hands also. Alpha has hand tattoos (looks like half a heart or wings on the back of his hand), Omega wears large silver rings, Mist has red nail polish and thin, feminine hands. Also they have trademark hand poses (Alpha does a V sign in front of his mouth area, Earth is often doing middle fingers)

ANYWAY these are my tips, I’ve actually seen Special/Papa, Omega and Alpha’s faces IRL but I’m still completely incapable of telling Ghouls apart if it’s a face close-up and I’ve seen other posts around explaining it better than me but I don’t know where to find them! Best of luck in your quest to identify the Nameless Ghouls, anon!

(if anyone wants to add better explanations and/or examples please add to this post or link to a better post! thanks!)