Which female investor joined the regular Dragon's Den panel in series 3?

Deborah Meaden joined the regular Dragon's Den panel in series 3.

Meaden became one of the programme's best-known investors after joining the British series in its third series. She replaced Rachel Elnaugh, who had been part of the original panel, and brought experience from leisure, retail and consumer businesses.

Her investment style is often associated with close attention to trading performance, management capability and the practical route to profitability. Like the other dragons, she negotiates the percentage of a company that an entrepreneur must offer in return for funding.

Meaden had already built and sold businesses before appearing on television. She later became strongly associated with ethical business and environmental issues, while remaining a prominent figure in British popular culture. Her arrival marked an important change in the show's panel rather than a new version of the programme itself.