Pre-Apoorva, Nagesh already established himself as good character actor. He is one of the strongest case in point of how a good comedian can also be great dramatic actor (as proven also in Hollywood....and at the same time I am not including Vivek here).
Versatility here means what? Ability to do many types of role? Sure, any actor can do, but can they do well. What we see is indeed cases of actors attempting many role, but do they excell in it?
Or versatility as in able to do things other than acting and do it well. Appadi paartha Sakalakalavallan-nu oruthar mattume.