I think that's going to be tough to do by searching databases. legally, vendors cannot directly name who a real-life character is susposed to be, so  they  use indirect names, like "London Knights" for Kiera Knightly. Somebody here would just have to know what existing characters fit your bill. You might try searching the forums (instead of the marketplaces) on "Emma Watson" or "Hermione Granger" to see if someone has mentioned a similiarity.  You might also search the marketplace on "Laura 3" and check over the long list for any thing that looked like a code name for what you are looking for.