TextMaker is an actor
There is one in the world
There can be more than one-------------------------------------
I am guessing that your TextMaker objects will never be at the same place, and never move.
If the TextMaker objects in your world never change locations and are never located at the same place, then when you do have more than one, use the 'getObjectsAt(X, Y, TextMaker.class)' where X and Y are the coordinates of the TextMaker you want, instead of 'getObjects(TextMaker.class)'.