Which former Dragon's Den investor was the founder of the health-club chain Bannatyne?

Duncan Bannatyne was the founder of the Bannatyne health-club chain.

Bannatyne built a business empire that included care homes, hotels and health clubs. The Bannatyne health-club brand became one of the largest names in the British fitness sector, offering gyms, spa facilities and related leisure services across the country.

He joined Dragon's Den as one of its original investors in 2005 and became widely recognised for his distinctive accent and blunt negotiating style. Bannatyne left the programme in 2014, after almost a decade on the panel.

The health clubs should not be confused with the wider Bannatyne Group, which has operated across several sectors. The answer identifies the entrepreneur behind the brand, not a separate company executive. His television role and business ownership are both well documented, but they represent different parts of his public profile.