1
Batroc the Leaper
2
Armadillo
3
Baron Helmut Zemo
4
Serpent Society
5
Nightshade
6
Zaran the Weapons Master
7
Flag-Smasher
8
Viper
9
Arnim Zola
10
Crossbones
11
King Cobra
12
Jack O' Lantern (Steven Levins)
13
Sidewinder
14
Porcupine
15
A.I.M.
16
Sin
17
Nuke
18
Vermin
19
Scourge of the Underworld
20
Slug
21
Baron Blood
22
Machinesmith
23
Hive
24
Constrictor
25
M.O.D.O.K.
26
Hate-Monger
27
Red Skull
28
Blue Streak
29
Black Mamba
30
Cutthroat
31
Baron Heinrich Zemo
32
Baron Strucker
33
Death Adder
34
Super-Adaptoid
35
Princess Python
36
Rattler
37
Bushmaster
38
Hydra
39
Superia
40
Puff Adder
41
Dr Faustus
42
Eel
43
Cottonmouth
44
Anaconda
45
U.L.T.I.M.A.T.U.M.
46
William Burnside
47
Power Broker
48
Golden Claw
49
Moonstone (Lloyd Bloch)
50
Commision on Superhuman Activities
51
Captain Hydra
52
Asp
53
Coachwhip
54
Secret Empire