Madame Masque and Crossbones are two of Marvel's most ruthless villains, both serving as deadly enforcers in the criminal underworld. Madame Masque, aka Whitney Frost, is a brilliant strategist ...

Sin is the one who arranged for Crossbones to kill Steve Rogers in ... There are dozens of amazing and sinister female Marvel ...

Crossbones, and Harley Keener. Avengers: Doomsday and Avengers: Secret Wars can up the ante with new cameos by characters from all over the Marvel multiverse. Aside from characters from Fox's ...