Agents of SHIELD created quite a stir when it was revealed that Coulson was resurrected using blood from the body of a blue Alien. The blue alien has been known for awhile to be a member of the Kree race. The Kree are also responsible for creating the Inhumans. The Inhumans are now becoming a pivotal part of the storyline with both Skye and Raina being revealed to be of Inhuman ancestry.
With the Inhumans running around it seems that the time has come to revisit the Blue Alien. In tonight's pivotal episode we will both see Lady Sif and some more of the Kree.
Who's the blue guy? Find out in tomorrow's new #AgentsofSHIELD! http://t.co/jEfVqVMzcU pic.twitter.com/uH6jN1GGZx
— Marvel Entertainment (@Marvel) March 10, 2015
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Coulson's Resurrection and Alien connections:
Who are the Kree
List of Marvel's Alien Races including the Kree