Peter Jones has appeared in every series of the UK BBC show Dragon's Den.
Jones was one of the original investors when the British programme launched in 2005. Unlike the other members of the initial panel, he remained part of the main UK series throughout its run, giving him the longest continuous association with the programme.
He is a British entrepreneur and businessman with interests that have included telecommunications, technology, retail and media. On the show, he is known for examining sales, margins, valuation and the entrepreneur's ability to grow a company rather than focusing only on the product's novelty.
The question concerns the regular UK series, not every international edition or every special appearance. Other long-serving dragons, including Deborah Meaden, have also appeared for many years, but Peter Jones is the investor credited with being present in every British series.