All appearances of Hydra Four (Earth-1010). Hydra Four Birds of a Feather Winter Is Coming Trending pages Hydra Four (A!) Winter Is Coming (A!) All items (3) # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Other B Birds of a Feather (A!) H Hydra Four (A!) W Winter Is Coming (A!) Categories: Character Appearances Community content is available under CC-BY-SA unless otherwise noted.