What was the name of the first British Dragon's Den investor to leave the original panel?

Simon Woodroffe was the first British Dragon's Den investor to leave the original panel. He was part of the five-person line-up that launched the British series in 2005, but did not remain for the programme's later panel changes.

The original investors were Peter Jones, Duncan Bannatyne, Rachel Elnaugh, Simon Woodroffe and Doug Richard. Woodroffe's background was in entrepreneurship and hospitality, especially the Yo! Sushi chain, while the other early Dragons brought experience from areas including leisure, retail, technology and business services.

This fact is easy to mix up with the dates on which the other original Dragons departed. Panel turnover was a regular feature of the show, and several investors left after Woodroffe. The answer is about the first departure from the original British panel, not the first person to stop appearing in a particular episode or the first Dragon to leave an international version of the franchise.