Lady Sif on Agent’s Of SHIELD
Up to now Marvel’s Agents of Shield has been very coy about it’s crossovers. References and minor characters that have never appeared elsewhere, yes. Movie characters? Only in brief cameos.
It seems though that this will be a little different. Jamie Alexander will guest star in episode 15 Yes Men and not just in a 30 seconds after the credits sequence:
Lorelei, a deadly seductress from Asgard, attacks Coulson and the team; Lorelei’s nemesis, Lady Sif (Jaimie Alexander), steps in to help.
In the Marvel universe Lorelei is the younger sister of The Enchantress, a major Asgardian character who hasn’t featured in any of the movies yet.