Actors > properties > Actor Type

snippet:

Preview Code in Design mode 

getActorType(0);

code mode without import com.stencyl.behavior.Script.*; 

Script.getActorType(0);

computational shortcuts - requires import com.stencyl.Data

level 1: 

return cast Data.get().resources.get(0);

level 2: 

return cast Data.instance.resources.get(0);