TV dreamboat Patrick Dempsey faces a nasty divorce from second wife Jill Fink – and it could get even nastier as shocking details emerge about the “Grey’s Anatomy” star’s secret first divorce, including accusations of being a wife beater! 

The National ENQUIRER obtained Dempsey’s bombshell divorce papers in 2006, in which “Dr. McDreamy” was accused of physically assaulting his first wife, Rochelle “Rocky” Parker.

The disturbing divorce papers provide details on how Rochelle helped her much-younger hubby kick addictions to drugs and alcohol!

Dempsey was only 17 when he met his cougar, a widow with three children. Despite the age gap, the pair married in 1987. He was 21; she was 47. Rochelle gave up her acting career to become his manager and acting coach. She filed for divorce in 1992, citing “irreconcilable differences” after love rat Dempsey admitted to infidelity.

Their battle dragged on for years, with Rochelle accusing him of abuse in court papers. Patrick’s first wife, Rocky Parker, called it quits in 1992 after the actor told her he’d met another woman “The physical abuse included Respondent’ s breaking my finger when he rushed me to the van and closed the door on my finger,” according to court documents.

“Also, while we were on the set of his [1987] movie ‘Can’t Buy Me Love,’ he beat me up because he claimed he ‘wanted to see what it was like to beat up a woman!’”

In the same filing, Rochelle claimed: “He repeatedly expressed his love and appreciation for me, not only for what I had done for him professionally but also for my helping him get off drugs and alcohol.”

She was awarded substantial support from Dempsey through a pension trust – as well as the couple’s home, a car and a 38-foot motor home.

In 2006, Dempsey’s reps vehemently denied Rochelle’s claims and told The ENQUIRER his ex-wife had filed false statements. His reps further said they had received a statement from her in which she said the statements she made in divorce papers about Dempsey were false. When then contacted by The ENQUIRER, Rochelle said she stood by her claims, adding, “I don’t know why I would put up with the violence and then protect him.”

While Rochelle passed away in 2014, Dempsey’s reps continue to deny her claims.

Dempsey married Jill, 48, in 1999. She cites “irreconcilable differences” in the divorce papers that she’s filed to end their 15-year marriage. Jill is seeking spousal support and joint custody of their three children – Talulah Fyfe, 12, and twins Sullivan Patrick and Darby Galen, 8. She’s also requesting that Dempsey, 49 – who is worth an estimated $40 million – pay her attorney fees.