PUTIN’S “psychotic” prison torturer known as Dr Evil has been unmasked by those who survived his reign of terror.

Under the cover of a white medical coat and a balaclava, Ilya Sorokin became one of the most feared torturers inside Russia’s notorious Penal Colony No. 10 in Mordovia.

The 34-year-old inflicted electric shocks, savage beatings and depraved sexual humiliation on Ukrainian prisoners of war.

But thanks to independent journalists, working with with dozens of exchanged Ukrainian POWs, the identity of the so-called doctor has finally been exposed.

The heartless dad-of-two was accused of “pointless sadism” and a grotesque betrayal of medical ethics.

One brave survivor said Sorokin’s voice was “manic, screechy… indescribable”.

“He made prisoners bark and crawl like dogs, or crow like roosters,” one said.

“One POW barked especially well and was made to do so constantly.”

Former inmate Pavlo Afisov recalled: “His favourite question for all of us was, ‘Who are you?’ We had to reply, ‘F*****s.’”

Torture in a white coat

The torture wasn’t random — it was systematic.

According to a damning new investigation by Schemes and Current Time, corroborated by nearly 50 ex-inmates and amplified by OCCRP, Sorokin singled out prisoners for electric shocks and genital beatings.

His horror methods also saw psychological torment that included mock executions and forced singing of Russian anthems.

“Nearly all,” the report says, “reported having been tortured and subjected to relentless physical and psychological violence.”

Sick prisoners were denied care — one, with a rotting tooth, was refused any treatment.

Volodymyr Yukhymenko, a Ukrainian soldier, died from his injuries after enduring pneumonia, multiple fractures and internal bleeding.

His cellmate told investigators that Sorokin refused to even examine him.

When confronted by journalists, Sorokin — now working as an army medic — tried to feign innocence.

“That can’t be true. I don’t work there,” he said before abruptly hanging up and blocking the caller.

But damning video evidence, social media trails, and victim testimonies leave little doubt that Sorokin is Dr Evil.

He lives in Potma, just 19 miles from the penal colony, where he once posed in military garb, peddled Soviet nostalgia, and performed crude comedy skits.

His online posts show unwavering support for Russia’s war and a chilling pride in his role.

It comes after Russian troops were reportedly killed by poisoned water bottles in a suspected Ukrainian sabotage operation.

At least four soldiers were said to have died in excruciating pain after drinking from bottles labelled “Our Water”, allegedly supplied to the front line in a humanitarian consignment.

Several others are said to be in critical condition in another major blow to Mad Vlad’s invasion of Ukraine.

The deadly incident, which unfolded in the Panteleimonivka area of Donetsk, has sparked horror and fury across pro-Kremlin military channels.

Distressing footage seen by The Sun shows poisoned troops convulsing, moaning in agony, and slipping into unconsciousness as medics scramble to help.