Canadian actress Laura Vandervoort was the latest addition to the superhero craze with her role as Supergirl in the immensely popular “Smallville” (CW, 2001- ). Born Sept. 22, 1984 – coincidentally, the year that the original silver screen version of “Supergirl” was released – Vandervoort grew up in Toronto and graduated from the York Mills Collegiate Institute in North York, Ontario. Although she originally studied English and writing, she had been active on television since she was a teenager, beginning with a handful of appearances on the popular kiddie horror series, “Goosebumps,”