muscleman vs actor

muscleman and actor both are nouns.

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

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

muscleman: someone who does special exercises to develop a brawny musculature
actor: a person who acts and gets things done

Other hypernyms of muscleman include doer, worker.

muscleman (noun)	actor (noun)
a bully employed as a thug or bodyguard	a theatrical performer
someone who does special exercises to develop a brawny musculature	a person who acts and gets things done