Which Dragon's Den investor founded the Bannatyne Group before joining the television panel?

Duncan Bannatyne founded the Bannatyne Group before joining the Dragon's Den television panel.

The Bannatyne Group developed into a major operator of health clubs, spas and hotels in the United Kingdom. Bannatyne built his business career through a series of ventures before concentrating on the leisure group that bears his name. His entrepreneurial background led to his selection as one of the original British Dragons.

Bannatyne appeared on Dragon's Den from the programme's launch in 2005. On screen, he was associated with direct questioning about the strength of an idea, the founder's commitment and the proposed valuation.

The Bannatyne Group is sometimes described simply as a chain of gyms, but its activities have also included spa and hotel operations. The answer is the founder's full name, Duncan Bannatyne, rather than the group name or the name of another health-club entrepreneur.