shirley henderson (born 24 november 1965) is a scottish actress. her most notable movie roles include gail in "trainspotting" (1996), jude in the three "bridget jones" movies (2001, 2004, 2016) and moaning myrtle in "harry potter and the chamber of secrets" (2002) and "harry potter and the goblet of fire" (2005). her other movies include "topsy-turvy" (1999), "wilbur wants to kill himself" (2002), "frozen" (2005), "miss pettigrew lives for a day" (2008), "anna karenina" (2012), "never steady, never still" (2017), "okja" (2017) and "" (2019).