Peter Jones has appeared in every series of the British television programme Dragons' Den.
Jones joined the original panel when the BBC launched its British version of the format in 2005. Unlike several other investors, he remained part of the regular cast through successive panel changes, making him the show's longest-continuing dragon.
His business background includes telecommunications, technology, media and retail investments. On Dragons' Den, he is particularly associated with examining a company's potential for growth, ownership structure and valuation.
The fact is sometimes confused with the tenure of Duncan Bannatyne, who was also a long-serving original dragon but did not appear in every series. Jones's continuous participation is the distinction behind this answer.