Duncan Bannatyne left the UK television show Dragon's Den after series 12.
Bannatyne was one of the programme's original investors and appeared from its launch in 2005. His departure followed the twelfth series, ending an eleven-year period in which he became strongly associated with the panel's confrontational questioning and business-focused negotiations.
He was replaced in the investor lineup by newer Dragons, illustrating how the programme refreshed its panel while retaining its central format. A series number is more precise than simply saying he left in 2014, because broadcast years and production schedules can make season milestones easier to compare than calendar labels.
Bannatyne is a Scottish entrepreneur and philanthropist whose business career included health clubs and care homes. His television role increased his public profile, but his appearance on Dragon's Den represented only one part of his wider business career.