'Empire' Cast and Crew Fiercely Divided Over Jussie Smollett

Jussie Smollett hasn't regained the full support of his "Empire" family despite criminal charges against him being dropped ... and things are still very divided among cast and crew.

Production sources tell TMZ ... there are still people on the set -- especially writers -- who believe the dismissal of charges is a vindication, proving Jussie was a victim. Point of fact ... the State's Attorney believes Jussie staged the attack but felt it was a low-priority, non-violent crime that would have resulted in a punishment of community service, so why bother.

We're told there are a number of people on the "Empire" set who share the view that Jussie staged the attack and are shocked by the lack of consequences ... and don't want him back on the show. They are especially offended Jussie allegedly faked the attack to squeeze more money out of producers.

The contingent who are angry at Jussie believes he's a liability to the show and should be cut if the show comes back for season 6.

One thing has united the cast ... they are all thrilled the case is now closed because they believe it's a threat to the show's future.

Fact is ... the case isn't closed. The FBI is still investigating the letter that was sent 8 days before the "attack," to determine if Jussie sent the letter. If that conclusion is reached, he could face federal charges.