ensemble vs supporting players

ensemble and supporting players both are nouns.

Word	Noun	Adjective	Verb	Adverb
ensemble	Yes	No	No	No
supporting players	Yes	No	No	No

As nouns, ensemble and supporting players are synonyms defined as:

ensemble (noun)	supporting players (noun)
a coordinated outfit (set of clothing)	a cast other than the principals
the chorus of a ballet company
a group of musicians playing or singing together
an assemblage of parts or details (as in a work of art) considered as forming a whole
a cast other than the principals