Suggestions by @dwadex
300 suggestions

Sal Maroni
as S in Best Supervillains in Alphabetical order

Carmine Falcone
as C in Best Supervillains in Alphabetical order

Killer Croc (Waylon Jones)
as K in Best Supervillains in Alphabetical order

Catman (DC Comics)
as C in Best Supervillains in Alphabetical order

Catwoman (Selina Kyle)
as C in Best Supervillains in Alphabetical order

Hush
as H in Best Supervillains in Alphabetical order

The Riddler (Edward Nigma)
as R in Best Supervillains in Alphabetical order

Bane (Eduardo Dorrance)
as B in Best Supervillains in Alphabetical order

Ra's al Ghul (Henri Ducard)
as R in Best Supervillains in Alphabetical order

Bizarro
as B in Best Supervillains in Alphabetical order

Atrocitus
as A in Best Supervillains in Alphabetical order

Swiper The Fox
as S in Best Supervillains in Alphabetical order

Parasite
as P in Best Supervillains in Alphabetical order

Doomsday
as D in Best Supervillains in Alphabetical order

Doomsday (DC Extended Universe)
as D in Best Supervillains in Alphabetical order

Manchester Black
as M in Best Supervillains in Alphabetical order

Morgan Edge
as M in Best Supervillains in Alphabetical order

Bruno Mannheim
as B in Best Supervillains in Alphabetical order

Brainiac (New 52)
as B in Best Supervillains in Alphabetical order

Matt Hagen/Clayface
as C in Best Supervillains in Alphabetical order