Which investor left the British Dragon's Den panel after its eighth series?

Theo Paphitis left the British Dragon's Den panel after its eighth series.

Theo Paphitis is a British-Cypriot retail entrepreneur best known for building and leading businesses including Ryman, the stationery retailer. He joined the original Dragon's Den investor group and became associated with practical retail knowledge, brand positioning and commercial discipline.

His departure came after series eight, marking the end of his regular role on the panel. Investor line-ups changed repeatedly as the programme developed, so series numbers are important when identifying who appeared in a particular period. The original group did not remain unchanged throughout the show’s long run.

Paphitis continued to be a prominent entrepreneur and media personality after leaving the programme. He is sometimes confused with later investors because the series used the same title and core format across multiple eras. The key distinction is that he belonged to the original generation of dragons, whereas later panel members arrived in subsequent series.