Soon-to-be father-in-law of Mets owner Steve Cohen’s daughter has wild past including allegation he boasted of cocaine orgies

Sophia Cohen may be used to her dad, Mets owner Steve Cohen’s, reputation as a colorful and controversial billionaire here in the US. But it sounds as if her soon-to-be father-in-law is just as kooky a character in Australia.

As exclusively reported last month, Sofia is engaged to CAA agent Harrison Waterstreet.

Now we hear that Waterstreet’s old man, Charles Waterstreet, is a top lawyer Down Under who — just like Steve — even has a TV drama based on his life.

Meanwhile, Charles faced allegations in 2017 — which he firmly denies — that he’s boasted about threesomes and having women snort cocaine off his body.

It has been widely reported that Charles — a trial lawyer known as a “barrister” in Oz — is the inspiration for the central character on long-running Australian drama “Rake.” (Cohen was the inspiration for hedgefunder antihero Bobby Axelrod in Showtime’s hit “Billions).

Although even that is somewhat controversial. After Charles was accused of sexual harassment, Richard Roxburgh, the actor who plays the lead role on the show told an Australian newspaper: “To be crystal clear, there is no real Rake.”

The star said that Charles had been given a credit on the show because, “He told us one good story which we adapted and used in an episode in season one. As a result, it was agreed that he should be credited as co-creator.” (He also said that any day he doesn’t hear Charles Waterstreet’s name is a good day.)

To return to the sexual harassment allegations, in 2017 a 21-year-old woman wrote an article for online magazine New Matilda claiming that she had worked for less than a day as a paralegal and personal assistant to the barrister.

Sydney law student Tina Huang claimed that, among other things, Charles had asked her to watch a pornographic video in her job interview and told her that he enjoyed having women snort cocaine off him.

She also claimed that,…