Avengers: Infinity War - 10 Possibilities For The Secret New Character

5. Moondragon

As well as Peter Dinklage's secret role in Infinity War, a picture of the Russos on the film's set with Stranger Things star Millie Bobby Brown set the rumour mill into over-drive. There might have been nothing to it (and it may simply have been a case of her Stranger Things commitments taking her to Atlanta, where Infinity War is also filming), but one intriguing thing that came out of it is the suggestion that she might be playing Moondragon.

There's absolutely no way that Brown would be playing a version of the character closely resembling her look in the comics (it was all a bit needlessly sexualised, to be quite honest), but having her appear as Drax's not-dead daughter to lead into Guardians Vol 3 would be inspired.

Thanos is already a big part of Moondragon's story, but it would be perfect to see their relationship revealed, with Drax's daughter the latest brainwashed adoptive daughter to replace Nebula and Gamora. It would be a hell of a twist to Drax's story and it would follow Thanos' trend of stealing daughters as his own.

Even if it's not Brown, it would be fitting - and excellent - for her to appear.