>>715323993
His next line will be "The voice isn't Gaster"

>>530374494
"The voice" is clearly Gaster, but we can understand him in plain English instead of Wingdings because it would be annoying to impossible to meaningfully communicate through a cipher language, and him speaking in Wingdings would ironically be concrete evidence of his identity which would spoil the element of mystery

>>712516848
>and it isn't even clear if he'll even be a thing in Deltarune
If you're blind deaf and dumb, sure