Colonel Blimp vs fictitious character

Colonel Blimp and fictitious character both are nouns.

Word	Noun	Adjective	Verb	Adverb
Colonel Blimp	Yes	No	No	No
fictitious character	Yes	No	No	No

Colonel Blimp (noun)	fictitious character (noun)
any elderly pompous reactionary ultranationalistic person (after the cartoon character created by Sir David Low)	an imaginary person represented in a work of fiction (play or film or story)
a pompous reactionary cartoon character created by Sir David Low