It's drip, drip, dripping that Alex is in for Thor and maybe his Dad will play Odin

The source also confirms that Alexander Skarsgård is Kenneth Branagh's choice to play Thor, and that Josh Hartnett will likely play Thor's adversary Loki. Stellan Skarsgård is a strong possibility to play Odin, Thor's father.

http://www.reelzchannel.com/person/189911/alexander-skarsgard