The Hollywood Reporter reports that Colm Feore and Jaimie Alexander will join the cast of "Thor," the bigscreen adaptation of the Marvel comic book. Chris Hemsworth has already been cast in the lead hero role of Thor. Tom Hiddleston has also been cast as Loki, the movie's villain; and Natalie Portman is Thor's human love, Jane Foster.

Alexander will play Sif, one of Thor's loves but Feore's role is unknown and is being kept a secret, although it's speculated that he is a villain.

Kenneth Branagh is directing the feature.