Starting at the top: Iron Man, Hulk, Black Widow, War Machine, Thor, Captain America, Hawkseye, Winter Soldier, Falcon, Nova, Scarlet Witch, Vision, Ant Man, Dr. Strange, ???, Spider-Man, Black Panther, ??? (Is that Wonder Woman?), Captain Marvel, ???
Then the bottom 3 under the Avengers logo: Nick Fury, ???, Red Skull