fictitious character vs Svengali

fictitious character and Svengali both are nouns.

Word	Noun	Adjective	Verb	Adverb
fictitious character	Yes	No	No	No
Svengali	Yes	No	No	No

fictitious character (noun)	Svengali (noun)
an imaginary person represented in a work of fiction (play or film or story)	the musician in a novel by George du Maurier who controls Trilby's singing hypnotically
	someone (usually maleficent) who tries to persuade or force another person to do his bidding