Levi Roots created the Reggae Reggae Sauce brand featured on Dragons' Den.
Levi Roots is the stage name of Keith Valentine Graham, a British-Jamaican musician, chef and entrepreneur. He developed the sauce from a family recipe and sold it commercially under the Reggae Reggae brand.
His appearance on Dragons' Den in 2007 became one of the programme's most recognisable pitches. The presentation helped bring his Caribbean-inspired sauce to a national audience, and the brand later expanded into additional food products and retail distribution.
This question asks who created the brand, not the precise equity percentage or investment terms discussed during the pitch. Those are separate facts and can easily be conflated. Levi Roots is the entrepreneur and performer associated with Reggae Reggae Sauce, while the dragons involved in the televised deal were investors rather than creators of the recipe.