Suggestions for costumes of people beginning with A:
apples and milk
You could dress as Tarzan or as a tramp. You also could dress as the Tin Man or as a train engineer.
If you want to dress up like a person from Egypt you could dress up as a Pharaoh or a queen. You could also dress up as one of the gods.
You could dress up as a person from West Side Story. Or you could google "musicals" on the images and see what the characters look like.
You might dress up stylishly. You could make a splash and dress up daringly. Or you may dare to dress up barely. You could dress up horribly. You may like to dress up cutely. Or, perhaps dress up acutely.
donkey
Yeti
You can dress up as an EMO!elephant, an evil scientist or an electrical worker.
you could dress up in the flag or you could dress up as a dragon - its on the flag Or, you could dress (if you're female) in the Welsh lady dress
Muumuu or Mongolian Princess
Yes it is a good person to dress up as!
You could dress up as a killer or a kid.