That is to say, to have your character interact with her or to actually be her?
Either way, the answer is yes. It really depends on the RP whether the GM would be okay with canon characters, but you could always ask in the OOC thread beforehand. But as a rule of thumb? Yes, there' nothing wrong with it.
T-Thank you. ^^ Much appreciated~ Keep me updated on how you're doing, alright? I want to know if there's anything I can help you with. I'm not just going to stop being available or anything like that. :P