A disgraced former Brooklyn Supreme Court justice and a shady real estate developer scammed investors in a $6.5 million scheme and pocketed nearly all the cash, federal prosecutors claim.

Ex-Judge Edward Harold King, who was forced to resign earlier this year amid a slew of fraud claims, set up a phony escrow account in cahoots with developer Sam Sprei to bilk two investors out millions of dollars tied to bankrupt property in New Jersey, federal prosecutors said Wednesday .

King and Sprei allegedly reneged on the deal when the investors tried to pull out — and only got a fraction of the money they had plunked down, according to the feds.

Former Brooklyn Supreme Court Justice Edward Harold King is facing federal fraud charges.…