Hi, before moving further, the rules for sorting cast credits state:

Listing the main actors of a movie first is recommended. The main cast should not be sorted by credit order, order of appearance or in alphabetical order.

So, first you identify the main cast (it could 3 actors, 4 actors or 6 actors depending on the movie) and those go first.

The major roles should always be credited before the small parts, no matter the celebrity status. e.g. If Danny Trejo only has one scene in a movie, he should not be credited before actors with bigger parts.

And.

When all the main parts are listed, we recommend using the credits order instead of a random order for the remaining credits.

So credits order for all the cast other than the main players.

(uncredited) credits should always be last.

Now, please be more specific about the issue, if the issue is still there after you read the full set of rules.