Which Dragon's Den investor was known as the founder of Bannatyne Fitness?

Duncan Bannatyne was known as the founder of Bannatyne Fitness.

Bannatyne built a major health-club business that operates under the Bannatyne Health Club brand, commonly associated with Bannatyne Fitness. His business career also included care homes, hotels and media interests, but the fitness chain became one of his most recognisable enterprises.

He joined Dragon's Den as one of the original investors and became noted for direct questioning and a strong interest in businesses with clear commercial potential. Bannatyne left the BBC programme in 2014. He is sometimes mixed up with Peter Jones or James Caan, but neither of those investors founded the Bannatyne health-club group.