Do you mean can Blueprint be INSTANCED (basically a copy) so you don’t have to keep creating new Blueprints? If so, yes.
All you would need to do is place as many of this Blueprint as you want in your scene. Then, if you want the characters to be different, you can change the skeletal mesh of each instance (copy).
They’ll all behave the exact same way, but they’ll all look different (if you are using multiple meshes).