fictitious character vs Little John

fictitious character and Little John both are nouns.

Word	Noun	Adjective	Verb	Adverb
fictitious character	Yes	No	No	No
Little John	Yes	No	No	No

fictitious character (noun)	Little John (noun)
an imaginary person represented in a work of fiction (play or film or story)	legendary follower of Robin Hood; noted for his size and strength