Cloud makes a return as the main character in the movie. He is all alone in the world, wondering if they done the right thing in attempting to save the planet. He now sports a new look wearing a black outfit instead of the purple from FFVII. He carries his trademark buster sword.
Although it is currently unknown as to what role Sephiroth will play in the movie, it is now likely that he will appear as more than just a flashback. We come to this conclusion as Square-Enix has listed him under the characters section of the official site.
Leaving Marlene in Tifa's care, Barret is searching for a new energy to replace Mako. It has been confirmed that the function of his right arm has changed. Only one small scene showing him has been shown so far.
Aerith has been shown as part of a flashback scene showing Cloud lowering her into the lake after her death. Recently, new images have been released of her, which only causes more speculation of her role.
Tifa made her first appearance in Jump magazine fighting Loz. Her wardrobe has been updated with her appearing to wear something similar to Rinoa in FFVIII. She now looks after Marlene and other orphans while working at Seventh Heaven.
Only one image has been released of Cid so far, with no information. He is shown holding his trademark spear weapon, which assumes he may take part in a battle or be heading towards one.
Like Cid, only one image has been released of Red XIII and no information. Therefore his role in Advent Children is of course unknown at this time.
Vincent has been living in solitary, studying the world and knows something of the current events that are taking place. Trailers appear to have made references to "Jenova" in relation to him.
Another of the SHM, however, as with all of them, little is known about what role he will play in the movie. His weapon appears to be a kind of gunblade, and is most likely the weapon confirmed to have the name "Velvet Nightmare".
