Agents Of SHIELD: 10 MIA Characters Who Should Return

3. Maria Hill

Last Seen: In contact with Coulson, who fed her the location of Baron von Strucker's base in "The Dirty Half Dozen" so that the Avengers could reclaim Loki's scepter, as seen in the opening scenes of Age of Ultron. Though she turned up in Age of Ultron following S.H.I.E.L.D.'s setup of the movie, she hasn't yet resurfaced on the series, presumably busy with her new job at the Avengers facility established at the end of the film. On top of that, as far as we know, she - and Nick Fury, for that matter - won't be appearing in next year's Captain America: Civil War. With her time on How I Met Your Mother having come to an end last year, many were expecting we'd see Cobie Smulders turn up more on Agents of S.H.I.E.L.D. That hasn't happened, and Hill could desperately use more face time to be developed as a fully-fledged character, so hopefully the future can change that.