Derek Dixon

The actor suing Tyler Perry for sexual assault and harassment is going on national TV to double down on his salacious claims against the billionaire ... recounting the first alleged incident. Derek Dixon, who had a role on Tyler's long-running TV show "The Oval," sat down with ABC News and told…

Tyler Perry is facing an accusation of sexual assault -- a claim coming from an actor on his long-running TV show, "The Oval," and one Tyler's camp calls a "scam" ... TMZ has learned. Derek Dixon filed a lawsuit against Perry, and in the docs he claims he and the director met at an event back in…