ENQUIRER first again!  Months ago we revealed the stars of Dexter Michael C. Hall was secretly dating his costar 'sister' Jennifer Carpenter.  Now they’re hitched!

The happy homicidal couple walked down the aisle New Year’s Eve - a few weeks prior to doing the same thing on the Golden Globes red carpet tomorrow night!

On September 5, we broke the story online - and as regular ENQUIRER readers know we always have all the inside info.

The two started dating last winter while Hall, 37, was waiting to finalize his divorce from his wife of four years, actress Amy Spanger.

"When producers got wind that Michael and Jennifer were a couple, they asked them to keep their relationship under wraps because they feared it would distract viewers from the show's story line," an insider had divulged.

"For months they tried to keep the romance a secret by going to out-of-the-way places and avoiding each other on the set."

Now everyone knows!