Marvel Cinematic Universe: 10 MIA Villains Who Need To Return
7. Felix Blake
Last Seen: Agents of S.H.I.E.L.D.: Season 3
We've only seen Titus Welliver's Agent Blake a handful of times, but his journey has certainly been an interesting one. After his introduction in 2012's One-Shot Item 47, he turned up in the first season of Agents of S.H.I.E.L.D., where he was nearly killed and put out of commission by Deathlok, disappearing until a single appearance in the third season.
That appearance - in the episode "Watchdogs" - revealed that Blake's encounter with Deathlok, coupled with the fall of S.H.I.E.L.D., had warped his mind, instilling within him a hatred for both his former allies, like Phil Coulson, and the Inhumans, which led to him founding the titular hate group. Though Coulson and the team battled with the Watchdogs, Blake ultimately got away despite supplying Giyera - and Hive, unwittingly - a warhead, and hasn't been seen or heard from again since.
Of course, the Watchdogs played a huge role in the show's fourth season, which made Blake's absence all the more noticeable, but season five's time travel/saving the world plot put the group on the backburner. With at least two more seasons on the horizon, however, and with the series' willingness to find ways to tie up loose ends, hopefully Blake can be brought to justice before all is said and done.