Greece’s new finance minister, Yanis Varoufakis, has bounded onto the political stage not like a finance minister at all.  He’s more like an action movie star.

With his bald head, athletic build and feisty manner, Varoufakis reminds some of the Bruce Willis of “Die Hard” fame. One German newspaper called Varoufakis “a sex icon, roaring around Athens in his motorbike leathers, radiating the sort of classical masculinity you usually find only in Greek statues.”

Varoufakis may not relish this kind of press. He is a serious academic economist who has held senior university teaching posts in Greece, the United States, the U.K. and Australia. Long before his election last month, he fought a passionate campaign against the deep cuts in public spending that Germany and other European creditor nations imposed on Greece as a condition of the country’s $280 billion bailouts.

As a left-winger, Varoufakis believes in big government. Indeed, he describes himself as a Marxist. But Professor Monojit Chatterji, his doctoral supervisor at the UK’s University of Essex, says we should take that description with a pinch of salt.

“People are scared of him because of this Marxist label that he bandies around,” says Chatterji. “It’s almost done deliberately, in order to say to people: ‘Look here, I am a Marxist but you know I’m really a cuddly toy.’”

In spite of his seriousness, Varoufakis seems not to be averse to game playing. Hardly surprising, his academic specialty is game theory, the study of strategic decision-making. Computer games giant Valve Corp. hired him for his game-theory expertise.

That could now stand him in good stead.

“It’s not a bad background to have when you’re entering a period of intense negotiation,” says James K. Galbraith, a University of Austin professor who is a friend and former colleague.

But Galbraith rejects the claim that Varoufakis is playing the so-called “madman strategy,” making crazy demands and threatening to bring down the euro to extract greater concessions from Greece’s creditors.

“That’s not true,” Galbraith says. “There’s absolutely nothing mad or for that matter opaque about the position taken at this stage by the Greek government.”

Galbraith describes Varoufakis as one of the most interesting intellectuals on the planet who has energy, charm, intelligence and magnetism in abundance. Will these qualities be enough to win over Varoufakis’ key adversary in the debt negotiations, German Chancellor Angela Merkel?

Professor Chatterji recalls one of the former British Prime Minister Margaret Thatcher’s favorite phrases: “Thatcher used to say: ‘The lady is not for turning.’ I think about Merkel one might say: ‘This lady is not for charming.’”