Who am I again?

This morning, Hannah was pretending that we're All of a Kind Family.

H: You're Mama, Dada's Papa, Simeon's Charlie, and I'm Charlotte. Naomi will be whoever she wants to be. [Spoken like a true sister who tried to get Naomi to be something last time with no luck whatsoever.]
M: Well, Dada's not here, can Sim be Papa?
H: No, he's too small. Besides, Papa has a job that he goes to every day. It's at a junk shop, so that's appropriate. [Hello, Microsoft? Here's what Hannah thinks of you!]
M: Okay.
H: My nickname will be Hannah, so that if you call me Hannah by accident you'll just be calling me by my nickname. [Hmmmm...she knows me well.]

A few minutes later Naomi came downstairs with two of her teddy bears.

N: These are my babies, I'm a mama bear.
M: Oh, they're lovely.
N: You're my mama bear.
M: Okay.
N: And Sim is your baby bear.
H: [Just coming in the room.] Hi, Naomi, I'm being Charlotte. Do you want to be Gertie?
N: No, I'm a mama bear. Mama's a mama bear.
H: No, Mama's being Mama.
N: No, she's being a mama bear. And you're a sister bear.
H: No, I'm Charlotte.
N: No, you're a sister bear.
H: Maybe I'll be Charlotte pretending to be a sister bear.
N: No, you're a sister bear.
H: No, I'm Charlotte, pretending to be a sister bear.
M: Umm, Hannah, would you please go get something for me? [See, I called poor Charlotte (or a sister bear, depending on which camp you support) by her nickname, just as predicted!]