removeChild when Child is type Class

I’m working on a game where I’m adding a symbol (an enemy unit) from the Library via addChild() to an instance on the Stage. The symbol has Linkage/Class enabled so I can stick stat variables directly on it for easy access.

The problem is that I want to use the same name for enemies (like en0, en1) in different areas, but if I try to removeChild(), I get Error 1067: Implicit coercion of type Class to type DisplayObject.

Ideas, workarounds?