role player vs sham

role player and sham both are nouns.

Word	Noun	Adjective	Verb	Adverb
role player	Yes	No	No	No
sham	Yes	Yes	Yes	No

As nouns, role player and sham are synonyms defined as:

Other synonyms of role player include fake, faker, fraud, imposter, impostor, pretender, pseud, pseudo, shammer.

role player (noun)	sham (noun)
a theatrical performer	something that is a counterfeit; not what it seems to be
a person who makes deceitful pretenses	a person who makes deceitful pretenses

role player (adjective)	sham (adjective)
	adopted in order to deceive

role player (verb)	sham (verb)
	make believe with the intent to deceive
	make a pretence of