Charlie is a nerd queen and a pop culture addict, and is more than a little familiar with a wide range of fictional characters, including but not limited to:
Comics
Harry Potter
Lord of the Rings
Star Wars
Star Trek
etc.
While I personally always err on the side of caution when it comes to fourth-walling, this is a place where you can let me know if you think Charlie would know your character and if you're okay with her geeking out over them or not. If you'd rather she didn't or haven't specifically told me that you wanted her to here, she will just think that your name "sounds similar", is an alias, you have the best cosplay she's ever seen, and/or your parents were giant nerds too.