Cast Robert Downey Jr. as Iron Man, Scarlett Johansson as Black Widow, Chris Hemsworth as Thor, Zoe Saldana as Gamora, Tom Hiddleston as Loki, Elizabeth Olsen as Scarlet Witch, Tom Holland as Spider-Man, Josh Brolin as Thanos, Sebastian Stan as White Wolf and Karen Gillan as Nebula. Plot The Avengers unite in order to battle…