Hydra first appeared in Strange Tales #135 (August 1965). In its original continuity, it was headed by nondescript … See more

Before the evolution of mankind, a cabal of immortal hooded reptoids came to Earth, planning to start a legacy of evil. Millions of years later, they corrupted an Asian secret society of geniuses known as the Brotherhoo… See more

As advanced as any on Earth, Hydra's technology is based in part on artifacts of the alien Gnobians discovered by Baron Von Strucker in 1944. Hydra uses advanced experimental vehicles and devices alo… See more

Hydra's history as depicted in Marvel Universe continuity is a long, tumultuous and convoluted one, spanning millennia, and going back to the Third Dynasty of Egypt, with all references to the ancient group disa… See more

An alternate version of Hydra has appeared in Amalgam Comics. They are very similar to the mainstream version of Hydra and wear the same green and yellow outfits, but with black eyes instead of red. They first appear in S… See more

• Hydra appears in The Incredible Hulk episode "Enter: She-Hulk".
• Hydra appears in the X-Men: Evolution episodes "X-23" and "Target X". This version of the organization created X-23 from Wolverine's DNA, with Viper as … See more