dramatis personae vs assemblage

dramatis personae and assemblage both are nouns.

Word	Noun	Adjective	Verb	Adverb
dramatis personae	Yes	No	No	No
assemblage	Yes	No	No	No

As nouns, assemblage is a hypernym of dramatis personae; that is, assemblage is a word with a broader meaning than dramatis personae:

Other hypernyms of dramatis personae include gathering.

dramatis personae (noun)	assemblage (noun)
the actors in a play	the social act of assembling
	a system of components assembled together for a particular purpose
	a group of persons together in one place
	several things grouped together or considered as a whole