Peter Jones joined BBC's Dragons' Den in its first series and remains a Dragon.
Jones was part of the original British investment panel when the programme launched in 2005. His interests include technology, telecommunications, media and consumer businesses, areas that have frequently shaped the kinds of pitches he examines on the show.
His continued presence distinguishes him from many other Dragons who joined later or left after several series. The panel has changed repeatedly over the years, but Jones has remained one of the programme's defining investors. He is also known for founding the Peter Jones Foundation, which supports young people and entrepreneurship.
A common error is to identify every long-serving Dragon as an original Dragon. Deborah Meaden, for example, became a major early presence but was not part of the original panel. Steven Bartlett, Sara Davies and Tej Lalvani all joined much later, so they cannot be answers to this question.