Loki

Laufey is the adopted brother of Thor, and son of Odin. Loki was born a Frost Giant, the race of the mortal enemies of Asgard. Odin adopted Loki and raised him as his own. He grew up with Thor and was raised as a prince his entire life. During the events of the movie Thor, Loki showed signs of caring for his brother. When Thor went to the Frost Gaint realm, he tried to talk Thor out of leaving while they had the chance, though it was Loki who encouraged Thor to go in the first place.

When Thor was sent to Earth, Loki found out the truth about who he is and where he came from. Feeling betrayed about never knowing his true past, when Odin went to an Odin sleep, he took the throne. When Loki took the throne he became corrupt with power. He refused the Warriors Three request to bring Thor back to Asgard. Loki took advantage of Odin's condition and helped the Frost Gaints to come into Asgard undetected. When the Frost Gaints were about to kill Odin, Loki betrayed them and revealed that this was all a plan to destoy the Frost Gaints personally proclaiming, "..and you were killed by a son of Odin."

When Thor was on Earth, Loki appeared while to Thor while he was in S.H.I.E.L.D. custody. Telling Thor that Odin has entered an Odinsleep and died, he told Thor he could not undo his father's commands. When Thor returned to Asgard, he tried to stop Loki's plan. When Thor destoyed the Bifrost, Loki fell into the Abyss. His last words before falling were, "I could have done it, father! I could have done it! For you! For all of us!"

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