Here are the possible solutions for egocentric little creep of a detective according to the author who created him clue
Answer
Clue
Relevancy
poirot
Clue
"Egocentric little creep" of a detective, according to the author who created him
neko
Clue
Rocker Case who tweeted "If a dude called me a 'cougar' I'd be more likely to kill him bare-handed and shit him out in front of his parents than fuck him"