Selvig

Doctor Erik Selvig is an astrophysicist and the teacher of Jane Foster and Darcy Lewis. He was a Professor of Theoretical Astrophysics at Culver University. While working alongside Foster and Lewis, Selvig encountered an Asgardian named Thor. Shortly afterwards Selvig was recruited as a consultant for S.H.I.E.L.D. When Loki invaded Earth, Selvig was put under mind control which temporarily damaged his mind and gave him a mental breakdown. When he recovered, he worked with Thor once again during the Ultron Offensive and was recruited to work at the New Avengers Facility.

Erik Selvig is a brilliant scientist, deeply honest and a loyal friend. He's not as much idealistic as Jane Foster and immediately surrenders when S.H.I.E.L.D. arrives and takes away their research, but he surely believes in the necessity of his work. He's very protective towards Foster and considers her some sort of a daughter. Selvig, being of Scandinavian descent, said that he grew up listening to the legends of Thor and Asgard as a child. When Thor's human incarnation appears and claims to be Thor, Selvig immediately assumes the man is insane.