Nope. It's all up to you.
It entairly depends of the cosplay. But in most of them, yes you do.
You will need to buy a few things. black wig black long overcoat black Cape(optional) black pants
No. Nothing about acting requires a costume though for the audience it often makes it more entertaining.
Are you going to a anime convention? You don't need to cosplay. It's not a must... unless there is a rule for that particular convention.You could just wear a wig and a cute outfit, and say that the character you cosplay would wear this too. Or just wear something similar. You don't have to look exactly like that character.
it can be easy! making a cosplay for it is simple to, all you need is a sailor suit, and black shorts, look at cosplay .com, its a helpful site
If you need a cosplay fast and cheap the best place to always go is the thrift store that's where I have gotten all of my cosplay. (And I cosplay S. Italy)
Hey, you dont need to be a size 0 for cosplay. You can go just as you are for the cosplay and still look great in the cosplay i bet. But, if you really are insecure, try going to the gym a little bit and exercise. But dont go full vegan, dont ever go full vegan.
akatsuki outfit
To make a Darth Revan costume, you will need a black hooded cape, a Darth Revan mask or helmet, a black tunic, black pants, black gloves, and a red lightsaber. You can also add details like a belt with pouches and armor pieces for a more authentic look. You can find these items at costume shops or online stores specializing in cosplay.
I do not watch this show, but i will give you pointers. you should get the characters that best describe you and find the things you already have to go with the costume, then go shopping for the stuff you need. Or you could do the main characters.
You just need a baggy white long sleeved shirt. Thrift stores, Wal-mart, Target, etc.
You can buy it from the store. You will need 100 credits. If you already have it, you just need to look for it in your inventory.