Avengers: Infinity War - Every Character Confirmed So Far

Confirmed By: The Russos seemingly confirmed him first, and then it was revealed all of the Guardians would be appearing, before rumours began surfacing that Star-Lord would be one of the main players in the film.

Plot Predictions: He's too good to be relegated to a minor supporting role, so something is going to have to elevate him to top billing. Perhaps he'll be the Guardian most closely involved when Thanos retrieves the Power Stone from Xandar. Or the Aether from The Collector.

In all honesty, the whole team will be called into action when he starts pulling down Xandar to retrieve the Stone, so maybe the suggestion of Star-Lord being important alone is just silly?

And there really HAS to be a snark-off between Tony Stark, Scott Lang and him, or there's just no point in this ensemble even happening at all.