Agents Of SHIELD: 10 Characters Who Should Return In Season 4
7. Lady Sif
Last Seen: Departing back to Asgard after helping the team deal with the Kree warrior Vin-Tak in the second season episode 'Who You Really Are'.
Since 2013's Thor: The Dark World, fans haven't gotten the chance to directly see what's going on in Asgard since Loki began masquerading as Odin, having to rely on tidbits of information from Thor in Age of Ultron and Sif in her two appearances in the first two seasons of Agents of S.H.I.E.L.D. to glean anything. Even that hasn't been much to work with.
Lady Sif got more character work on the show than she did in her appearances in both Thor films, and though Jaimie Alexander is busy leading her own series Blindspot, she'd be more than welcome back in season four for another outing. Though Thor: Ragnarok won't be arriving until months after a theoretical fifth season of the series would kick off next year, Sif's third appearance could also help set up the events of that film by giving us one last check-in about Asgard and what Thor's been up to since leaving Earth to look into the Infinity Stones back in 2015.