Out of the 9, probably Cipher and Plankton.

Out of these, Bill Cypher.

Catra, Horde Prime, Azula and Silco

Azula

The Joker(DCAU), Lex Luthor (DCAU), Azula, Bill Cipher, Professor Pericles,Emperor Belos,

Out of these 9, the Lich, Aku and Azula.

Joker, Shredder, and definitely Plankton

SATAM Robotnik

Aku and Azula.

Scar from the Lion King