Himself (Unwilling killer)

Azmuth (Overarching Antagonist)

Arc One (Birth)

Technovore

Titanium Man

Blizzard

Finesse

Brilliance

Seeker

Monica Rappaccini

Arc 2 (Masters)

Zemo

Moonstone

Madame Masque

Klaw

Crimson Dynamo

Wonder Man

Abomination

Arc 3 (Most wanted)

Bullseye

The Foreigner

Wreaking Crew

Shocker

Scorpion

Norman Osborn