Historical clue formulations

• Creepy movie doppelgänger — 2023-04-04
• Person with inverted morality — 2018-01-25
• Facetious fall guy for one's wrongdoings, maybe — 2014-08-04
• Person on your bad side? — 2010-05-12
• Easily-blamed alter ego — 2004-03-22
• Classic object of blame-shifting — 1999-12-10