What do Airbnb, Facebook, Spotify, and LinkedIn all have in common? Peter Thiel. They made his fortune, but he’s since rejected Silicon Valley for being too "woke". He’s a contradictory character: a libertarian who made billions from big state surveillance; an intellectual who purports to hate politics, but who’s poured millions into political campaigns, including Donald Trump’s 2020 bid. Some call him a free-thinking genius, while others say he wants to watch Rome burn. Simon Jack and Zing Tsjeng tell the intriguing story of Peter Thiel, the man who ousted Elon Musk from their company PayPal, and who’s signed up to be cryogenically frozen. Then they decide if they think he’s good, bad, or just another billionaire.

The woman behind the brand that revolutionised the way the world shopped and dressed. Doris Fisher and her husband Don founded The Gap together and made basics cool – their pocket t-shirt was worn by both Mick Jagger at Live Aid and Marty McFly in Back to the Future, while Sharon Stone donned a $25 Gap black turtleneck for the Oscars. Simon Jack and Zing Tsjeng follow Doris Fisher and The Gap’s rollercoaster story, from its birth in the summer of love selling Levi’s jeans, to crashing out of fashion, then rising to dominate the 1990s. Then they decide if they think Doris Fisher’s good, bad, or just another billionaire.

Carlos Slim Helú's financial might has led some people to nickname his native Mexico ‘Slimlandia’. He dominates the country’s businesses, from telecoms to construction. But how did a man whose hero happens to be the Mongol warlord Genghis Khan get to be the richest person in the world? Many have blamed his monopolist business empire for Mexico’s slow economic development. Simon Jack and Zing Tsjeng tell the story of a baseball fan who’s calm in a crisis, rushing in to invest while others rush out. Then they decide if they think he’s good, bad, or just another billionaire.

Roman Abramovich was known as the "stealth oligarch" before he stepped into the limelight as Chelsea football club’s sugar daddy owner. The man loves a yacht: his largest cost $427m, and has bullet-proof windows and an escape submarine. Abramovich made his fortune from post-Soviet privatisation, aided by a man known as the “Godfather of the Kremlin”, Boris Berezovsky, and close ties to Vladimir Putin in the early years of his presidency. But with recent reports of a suspected poisoning and sanctions against him in the wake of the Russia-Ukraine war, Abramovich’s luck might be changing.

BBC business editor Simon Jack and journalist Zing Tsjeng track Abramovich’s meteoric rise from being a hard-up orphan to making billions from oil and aluminium. Then they decide if they think he’s good, bad, or just another billionaire.

Mukesh Ambani caught the world’s attention when he forked out $600m on his son’s wedding, including a performance by Rihanna – but how did he become Asia’s richest person?

Mukesh grew his father’s polyester trading company, Reliance Industries, into a conglomerate. But when he died without a will, Mukesh had to fight his brother for control of the family business. BBC business editor Simon Jack and journalist Zing Tsjeng follow Mukesh Ambani’s story from living in a Mumbai slum to building the world’s most expensive private residence - featuring an ice cream parlour and an artificial snow room - then decide if they think he’s good, bad, or just another billionaire.

Metal man and football fan Patrice Motsepe rose out of post-apartheid South Africa to become the country’s first black billionaire. Under apartheid, Patrice had to get a special permit to study at an ‘whites-only’ university - the same that Nelson Mandela attended in the 1940s - becoming a lawyer before following the gold into the mines. When the racist regime finally crumbled, he benefited from Black Economic Empowerment initiatives that turbo-charged his wealth. BBC business editor Simon Jack and journalist Zing Tsjeng track Patrice’s rise from asking to do the worst job in the mines to owning them. Then they decide if they think he’s good, bad, or just another billionaire.

Jack Ma is the king of ecommerce in China. Nicknamed 'Daddy Ma', the former school teacher even appeared alongside martial arts legend Jet Li in a kung fu movie. But how did a scrawny, belligerent child, who was the only person who failed to get hired at his local KFC, become the chairman and CEO of online mega-platform Alibaba? BBC business editor Simon Jack and journalist Zing Tsjeng explain how a crazy trip to America, where Jack had to flee from a conman, ended up introducing him to the internet, which would make him his fortune. Then they decide if they think he’s good, bad, or just another billionaire.

The story of how Yvon Chouinard, a reluctant billionaire who only wanted to climb and surf, harnessed his passions to create outdoor apparel brand Patagonia - before giving it all away to fight climate change. BBC business editor Simon Jack and journalist Zing Tsjeng discover how the self-proclaimed "existential dirtbag" went from jumping freight trains and eating cat food to leading the charge for businesses to commit to environmental causes.

Simon and Zing track the life of a man who claims that calling himself a businessman is as difficult for him as it for others to admit to being an alcoholic or a lawyer. Then they decide if they think Yvon Chouinard is good, bad, or just another billionaire.

Whitney Wolfe Herd, the “queen of the swipes”, launched a female-led dating app after a public scandal around her sexual harassment and discrimination lawsuit against Tinder.

BBC business editor Simon Jack and journalist Zing Tsjeng follow her story from a popular student with a flair for marketing, to carving her own path in the male-dominated tech world. Owning the ‘girlboss’ image, she took her company Bumble public aged just 31 with her baby "on her hip", making her the youngest self-made female billionaire. But she wouldn’t stay one for long. Simon and Zing explore her story before deciding if they think she’s good, bad, or just another billionaire.

How one social media site birthed an empire. The story of Mark Zuckerberg and Facebook.

BBC business editor Simon Jack and journalist Zing Tsjeng take us from his childhood to joining the billionaires club soon after, at just 23, then on to his current status as one of the four richest people on the planet. He dropped out of Harvard to mix with other founders in Silicon Valley and still retains absolute control over his company, now called Meta.

From buying up Instagram and WhatsApp, getting investments from Peter Thiel and Bill Gates, they trace Zuckerberg's spectacular rise. Plus discover what was true and what was made up in David Fincher's film about him, The Social Network.

From The Exorcist to owning 400 companies, how music sent the Virgin entrepreneur into space. He's an island owning adventurer, but he's incredibly shy. He's the record label owner who doesn't even like music. Journalist Zing Tsjeng and BBC business editor Simon Jack try to understand a man of many paradoxes and ask whether he's good, bad, or just another billionaire?