Order of Cast... Top Cast is under other Cast. Other Cast is under Top Cast. Please advise

By the cast mentioned I take it you're talking about the movie The Grounds (2014).

Use the Edit page button at the bottom of the title page. In the Cast section select "Correct / Delete" and click continue at the bottom. On the next page you'll see that the cast has numbers set in the "Order" column, and that is the order they are sorted in on the title page. If that order is wrong, you can either correct those who are wrong, by selecting "Correct" in the boxes next to their names (they say "Keep" by default), or if you need to correct all you can tick the "Correct all" box at the top of the page.

Since the movie isn't released yet the update will probably go through without too much fuss. If, however, the credits in the actual movie sort them without Michael, Trevor, Ashley and Allison as the top four actors, then the order in the credits will take precedence. There are many movies in the database where the top actors are listed far down on the list, because the movie credits is sorted "by appearance" or "alphabetically" or something.