Now, I'm going to do Grace:

Grace is Warbucks's faithful and eager assistant, who is always there for him, and Annie, who she loved from the start. If you want to be her, then you would have to act very eager to Mr. Warbucks, when he talks to you, be happy to tell him that he needs to call his personal accountant or that he needs to get a cavity filled. Be extremely kind and loving to Annie, and really be kind and well-hearted to everyone, but use a bit of a sharp tone with Miss Hannigan. 



Now, we'll do Rooster:

Rooster is quite like Miss Hannigan, only he doesn't own an orphanage. He is Hannigan's younger brother, and he is out for the money and only the money. If you're looking to be him, act like a male version of Hannigan; sarcastic, gullible, self-obsessed, and out for $$, no matter what you have to for it.