Peter Jones has appeared in the British television programme Dragon's Den since its first series and is its longest-serving original investor.
Jones was part of the original Dragon's Den investment panel when the BBC series began in 2005. He has remained associated with the programme across later changes to the panel, making him the continuous link between the opening series and the modern show.
His business interests include technology, telecommunications, media and leisure. On the programme, his pitches have often involved consumer products, technology businesses and brands with potential for large-scale growth.
Duncan Bannatyne and other early Dragons were also prominent in the first era of the programme, but they did not remain on the panel for the entire run. The answer therefore depends on continuous service, not simply early fame.