The people on renovation shows are often referred to as "hosts" or "presenters." They are typically individuals with expertise in home improvement, interior design, or construction who guide the audience through the renovation process. These hosts may offer advice, demonstrate various techniques, showcase design ideas, and interact with homeowners or participants involved in the renovation projects. Some popular renovation show hosts include Chip and Joanna Gaines from "Fixer Upper" and Drew and Jonathan Scott from "Property Brothers."