odd man out vs actor

odd man out and actor both are nouns.

Word	Noun	Adjective	Verb	Adverb
odd man out	Yes	No	No	No
actor	Yes	No	No	No

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

odd man out: someone regarded as eccentric or crazy and standing out from a group
actor: a person who acts and gets things done

Other hypernyms of odd man out include doer, worker.

odd man out (noun)	actor (noun)
someone regarded as eccentric or crazy and standing out from a group	a theatrical performer
	a person who acts and gets things done