In Dragons' Den, which original dragon founded the Bannatyne Group health-club business?

Duncan Bannatyne founded the Bannatyne Group health-club business and was an original dragon on Dragons' Den.

Bannatyne built a business empire that included health clubs, hotels and spas. The Bannatyne Group became particularly associated with gyms and wellness facilities across the United Kingdom. His career began with smaller ventures, including an ice-cream business, before he expanded into larger commercial enterprises.

He joined the original Dragons' Den panel in 2005 with Peter Jones, Simon Woodroffe, Theo Paphitis and Rachel Elnaugh. His blunt style and emphasis on profitability made him a distinctive presence in the programme's early years.

The surname in the question is also the identifying clue: the health-club company carries Bannatyne's name. This is separate from the businesses associated with fellow original dragons, such as Yo! Sushi, Phones 4u and Regatta.