David Beckman, a former chief executive of Barclays and a former member of the World Economic Forum, has become a darling of the media for the latest round of allegations against him.
He is now facing two separate allegations of fraud against him and is being sued by two other former Barclays executives, John King and David Chapple.
The pair say they were defrauded out of millions of dollars by Mr Beckman.
Mr Beckman denied all the allegations.
He said: “I’ve been a partner for 40 years.
I don’t believe I have made any illegal transactions.”
The allegations come as he continues to struggle with an illness, which has forced him to seek medical treatment at home.
He has been on a voluntary medical leave from his job at Barclays since late December.
The bank says he was diagnosed with Parkinson’s disease in February.
Mr King, who also worked at Barclays, and Mr Chapple, who worked at Citigroup, are seeking to get a court order that would stop Barclays from selling their shares in the company to another party.
“It’s a case where he’s been suffering for the last couple of months and his health has deteriorated,” said lawyer Peter Bailes.
“He needs to go home, he needs to get some medical treatment, he doesn’t want to be in this position.”
We’re trying to do the best we can for him.
“The charges come as Mr Beckham continues to face the allegations of wrongdoing against him by two former Barclays colleagues.
Mr Chapple told the New York Times: “David has been a fraudster for the past 30 years and we’re taking action to stop him.”
Mr Beckmann, a billionaire philanthropist and former chief economist at the World Bank, also has a reputation for having a tough relationship with the media.
He said: ‘If they can’t beat me, nobody can.’
The former Barclays chief executive said the allegations were not based on any facts and that he had not made any “illegal transactions”.”
I don’t know if they’re true or not, but they’re not accurate,” he said.
Mr Chappes lawyer said: ”The allegations are very serious, they’re very serious.
The allegation is that they were misled.
Mr Beckham’s legal team has said that they are not pursuing any further legal action against the Barclays and Citigroup companies.”
It seems that David has made it very clear that this is not the case.”
Mr Beckham’s legal team has said that they are not pursuing any further legal action against the Barclays and Citigroup companies.
Mr Bailess said: Mr Beckmann has been vindicated by the legal proceedings that have been initiated.
“David Beckman has had the courage to take action, he has been exonerated, and we hope he’ll be vindicated in his future dealings with the banking industry and the wider financial sector.”
The Barclays shares rose by 7.4 per cent to $15.50 on Thursday.