smiler vs actor

smiler and actor both are nouns.

Word	Noun	Adjective	Verb	Adverb
smiler	Yes	No	No	No
actor	Yes	No	No	No

As nouns, actor is a hypernym of smiler; that is, actor is a word with a broader meaning than smiler:

Other hypernyms of smiler include doer, worker.

smiler (noun)	actor (noun)
the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)	a theatrical performer
a person who smiles	a person who acts and gets things done