CREATE TABLE table_19529639_3 (original_toronto_cast VARCHAR, current_broadway_cast VARCHAR)

Who in the original Toronto cast played the character played by Kate Rockwell in the current Broadway cast?
SELECT original_toronto_cast FROM table_19529639_3 WHERE current_broadway_cast = "Kate Rockwell"
SELECT "original_toronto_cast" FROM "table_19529639_3" WHERE "Kate Rockwell" = "current_broadway_cast"