Laufey

"Your father is a murderer and a thief. He stole what was ours, and left our world in ruins. We have the right to reclaim the Casket." "Not when you'd use it to make war against other Realms."

- Laufey and Thor

Laufey was the king of the Frost Giants of Jotunheim, and the biological father of Loki.

The War
"Perhaps you should not have so carelessly abandoned me." "Or perhaps it was the wisest choice I've ever made."

- Loki and Laufey

Laufey was the leader of the Frost Giants. He led his army against the Asgardians and began a war. The final battle of the war took place on Jotunheim. As the Asgardians left the battle, Odin entered a temple to steal the Casket of Ancient Winters. He also found a child who was Laufey's son, left there to die, so he took him as his own.

Big Incident
"You long for battle. You crave it. I see you for what you are, Thor Odinson. Nothing but a boy, trying to prove himself a man." "This boy has grown tired of your mockery."

- Laufey and Thor

Years later, Thor, Loki, Sif and the Warriors Three went to Jotunheim to look for an explanation for the Frost Giants' intrusion that they suffered. However, they received an unwelcomed visit and Laufey commanded his Frost Giants to attack them. After a long battle, Odin arrived on Sleipnir and left with his fellow Asgardians.

Reunited with His Son
"Hello, father." "Ah, the bastard son. I thought Odin had killed you. That's what I would have done. He's as weak as you are."

- Loki and Laufey

Later, Loki paid a visit to him in Jotunheim, hinting that he was the one who allowed the Frost Giants into Asgard in the first place. He offered a deal with Laufey, in which he tells Laufey to go to Asgard to kill Odin. That way, Loki would be able to take the throne.

Death
"It's said you can still see and hear what transpires around you, even in this state. I hope it's true, so that you may know your death came by the hand of Laufey." "And your death came by the son of Odin."

- Laufey and Loki

Loki then led Laufey to Odin, but Loki stayed behind. Laufey made his way to the unconscious Odin, and was ready to kill him. In a twist of fate, Loki betrayed and killed his father, by using Gungnir's energy beam to disintegrate him instantly. This act made him look like a hero in front of his adoptive mother as part of his plan to completely destroy Jotunheim and the Frost Giant race as well as usurp the throne of Asgard.

Relationships

 * Frost Giants - Subordinates
 * Hailstrum
 * Grundroth
 * Raze
 * Loki - Biological Son and Killer
 * Asgardians - Enemies
 * Odin
 * Thor
 * Sif
 * Warriors Three
 * Fandral
 * Volstagg
 * Hogun

Trivia

 * In the comics, Laufey was killed in battle by Odin.