supernumerary vs thespian

supernumerary and thespian both are nouns.

Word	Noun	Adjective	Verb	Adverb
supernumerary	Yes	Yes	No	No
thespian	Yes	Yes	No	No

As nouns, thespian is a hypernym of supernumerary; that is, thespian is a word with a broader meaning than supernumerary:

Other hypernyms of supernumerary include actor, histrion, player, role player.

supernumerary (noun)	thespian (noun)
a minor actor in crowd scenes	a theatrical performer
a person serving no apparent function

supernumerary (adjective)	thespian (adjective)
more than is needed, desired, or required	of or relating to drama