Dune: who is who in part 2, from Austin Butler to Léa Seydoux?

The third trailer for Dune: Part Two was released last month, adding to excitement surrounding the upcoming sequel, which finally lands in cinemas on March 15.

Not only does the new clip flesh out a lot of the upcoming plot, but it provides longer glimpses of the film's new characters, such as the Emperor's daughter Princess Irulan, played by Florence Pugh, and Harkonnen Feyd-Rautha, played by Austin Butler.

But who are these characters? And what’s their importance in the upcoming film? Here we break down who's who in Dune: Part Two – there is a lot to unpack.

And, if you like the look of Dune, but have no real idea what’s going on – or think: the characters, the plot, the book and the movie.