* "A" or "Big A": This is the main antagonist of the show, who is known for sending the girls creepy messages and tormenting them. "A" is a mysterious figure who wears a black hoodie and mask, which makes it hard to see their face. Their identity remains a secret for a long time.
* "Red Coat": This is another mysterious figure who appears in the show, often associated with "A". They are often seen wearing a red coat, which hides their identity.
* "Black Veil": This is a character who also wears a black veil to hide their face, similar to "A".
If you're thinking of a specific character, can you provide any more details about them? For example:
* What is their gender?
* Do they have any other distinguishing features?
* What is their relationship to the main characters?
With more information, I can help you identify the character you're looking for.