Avengers: Infinity War - Every Character Confirmed So Far

Confirmed By: Stellan Skarsgård himself revealed back in February that he still has one film left in his five-picture contract, and that he won't be appearing in Thor: Ragnarok. Doing the maths leads to only one possible outcome, and the actor has said that he is likely to return for Avengers: Infinity War.

Plot Predictions: If precedent is anything to go by, Selvig will be called upon to fill in the pseudo-science of the plot, explaining how the Infinity Stones work in a relatable, realistic way before toddling off somewhere quietly (hopefully without suffering the ignominy of showing off his bare arse this time).

Maybe we'll also get an explanation for why the hell Thor made him come with him to the magical pool in Avengers: Age Of Ultron, because that did not make any sense at all.