The charming one of Thor's three friends, played by two different actors and remembered by neither audience.
Fandral, called Fandral the Dashing, is a member of the Warriors Three and a dashing warrior of Asgard. Joshua Dallas played him in Thor and Zachary Levi in the two films after.
The recasting is the most interesting thing about him, and that is a fair summary of the problem: three films, three appearances, and no scene that is his.