In Thor: Ragnarok, Thor is imprisoned on the other side of the universe without his hammer and finds himself in a race against time to get back to Asgard to stop Ragnarok—the destruction of his homeworld and the end of Asgardian civilization—at the hands of an all-powerful new threat, the ruthless Hela. But first he must survive a deadly gladiatorial contest that pits him against his former ally and fellow Avenger—the Incredible Hulk!
Thor: Ragnarok is directed by Taika Waititi from a screenplay by Eric Pearson, and stars Chris Hemsworth, Tom Hiddleston, Cate Blanchett, Idris Elba, Jeff Goldblum, Tessa Thompson, Karl Urban with Mark Ruffalo and Anthony Hopkins.
Marvel Studios has released very little information about who was cut from Thor 4. However, it is safe to say that anyone who did not make it into the final film was likely cut for time or budgetary reasons. With such an expansive cast, it is not surprising that some characters had to be left out.