Erdős–Bacon
From the Erdős–Bacon number wikipedia page:
An individual’s ErdÅ‘s–Bacon number is the sum of one’s ErdÅ‘s number—which measures the “collaborative distance” in authoring mathematical papers between that individual and Hungarian mathematician Paul ErdÅ‘s—and one’s Bacon number—which represents the number of links, through roles in films, by which the individual is separated from actor Kevin Bacon.
Danica McKellar, Winnie Cooper from The Wonder Years, has an Erdős–Bacon number of 6.
