Which businessman left the original Dragons' Den investor panel after series 12?

Duncan Bannatyne left the original Dragons' Den investor panel after series 12.

Bannatyne, a Scottish businessman and philanthropist, joined the British programme in its early years and became one of its most recognisable investors. He was known for direct questioning, strong reactions to ambitious valuations and a background spanning care homes, health clubs and other businesses.

He announced his departure from Dragons' Den in 2014, after the twelfth series. The change was part of a wider evolution in the panel rather than the end of the programme. Peter Jones remained associated with the show, while other familiar Dragons had already arrived or later departed.

The timing is sometimes confused with Bannatyne’s later television appearances and business activities. Leaving the panel did not mean he stopped being a businessman or public figure. It specifically refers to his regular role as an investor on the main British series.