Peter Jones was the only original Dragon's Den investor to remain on the panel from series 1 through series 20.
Jones joined the BBC programme when it began in 2005, alongside Duncan Bannatyne, Rachel Elnaugh, Theo Paphitis, and Simon Woodroffe. As other original investors left and newer dragons arrived, Jones continued as a central member of the panel. This made him the programme’s longest-serving dragon during that period.
Peter Jones is a British entrepreneur whose business interests have included telecommunications, technology, retail, property, and leisure. His on-screen role combines questioning a pitch with assessing valuation, market potential, and the entrepreneur’s ability to execute the plan. His continued presence is often used as a point of continuity in the show’s history.
The wording “only original investor” matters: several investors were present in the first series, but they did not all remain for the same long run. The fact concerns the panel’s membership, not the number of deals Jones made or the value of his investments.