Actors in trailer but not in movie

Hi,

We got a trailer for a movie we are about to release. The trailer features a couple of actors that don’t appear in the movie. Would it be possible to include these actors in the movie’s title page cast list with a particular attribute to underline they belong to the project as actors but don’t actually appears in the final movie? We already know we could include them as special thanks but it would be better to feature them in the cast list. Thanks.

Teeho