Who is the longest-serving original dragon on the British show Dragon's Den?

Peter Jones is the longest-serving original dragon on the British show Dragon's Den.

Jones joined the programme when the UK series began in 2005 and remained a regular investor through its subsequent series. His background includes interests in technology, media, telecommunications and retail, fields that often influence the questions he asks entrepreneurs during pitches.

The first panel also included Duncan Bannatyne, Theo Paphitis, Rachel Elnaugh and Simon Woodroffe. Several of those original investors later left, while Jones continued as a prominent member of the panel. This makes him distinct from dragons who joined in later series, including Deborah Meaden and newer investors.

The phrase “longest-serving” refers to continuous or enduring participation in the British programme, not necessarily to personal wealth or to the number of investments made. Jones is also known for appearing on other business and television projects, but Dragon's Den is the programme most closely associated with his role as a dragon.