Kraken

A mysterious armored operative entangled in Marvel's covert espionage underworld, Kraken is a dangerous figure connected to HYDRA whose true identity is shrouded in secrecy. He operates at the highest levels of shadow warfare, crossing paths with Nick Fury and other lethal players in the Secret Warriors saga.

Emerging from the shadows of Marvel's Modern Age, Kraken made a striking entrance in Secret Warriors #2 in 2009, brought to life by the powerhouse creative trio of Brian Michael Bendis, Jonathan Hickman, and Stefano Caselli. This is a character who keeps genuinely dangerous company — sharing pages with Nick Fury, Jake Fury, the deadly Gorgon, Tomi Shishido, and Quake — which tells you everything about the high-stakes espionage world they inhabit. Secret Warriors was one of Marvel's most gripping conspiracy-drenched series of its era, and Kraken is woven right into its intrigue. With only a focused handful of appearances, this is a figure whose impact punches well above their page count.