Francesca Bertorelli
From Tardis Wiki, the free Doctor Who reference
Francesca Bertorelli had an uncredited role as one of the schoolchildren in "The Pilot Episode" and the final transmitted version of An Unearthly Child. (DWMS Summer 1994) She later played an uncredited Woman in Market in The Romans. (DWM 251)
Her only other known acting credit was as Yvette in the children's film Wings of Mystery, also produced in 1963.