Loki (Marvel)

Loki (voiced by Tom Hiddleston) is the Norse god of mischief and the main antagonist in Thor and The Avengers. He is also the arch-enemy and step-brother of Thor, and is determined to get rid of him. At one point, he even goes so far as to send a giant robot called The Destroyer to Earth to get Thor out of the picture. However, Thor and the Justice Guardians manage to defeat him.

Trivia

 * Loki will become Jeffrey's enemy in Jeffrey & Friends meet Thor.
 * Loki will return for revenge in Jeffrey, Pooh, Jak, Daxter & Friends' Adventures of Hulk vs Thor.
 * Loki will return again in Jeffrey & Friends' Storm Adventures of The Avengers.