sham vs role player

sham and role player both are nouns.

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

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

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

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

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

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