What is the real name of Dragons' Den investor Levi Roots?

The real name of Dragons' Den investor Levi Roots is Keith Valentine Graham.

Levi Roots is the professional name of Keith Valentine Graham, a Jamaican-British musician, chef and entrepreneur. He adopted the stage name during his music career and later used it for the food business built around Reggae Reggae Sauce.

Roots became widely known to television audiences after pitching his sauce on Dragons' Den in 2007. His musical identity was part of the brand's public image, but the business also rested on a family recipe, product development and distribution. The televised investment helped introduce the sauce to a much larger market.

People sometimes assume that Levi Roots is a birth name because it sounds like a conventional personal name. It is a professional name, while Keith Valentine Graham is the name recorded in biographical sources. The distinction matters because the question asks for his real name, not the brand identity used in his public career.