Following the series revival in 2005, Derek Jacobi provided the character's re-introduction in the 2007 episode "Utopia". During that story the role was then assumed by John Simm who returned to the role multiple times through the Tenth Doctor's tenure. As of the 2014 episode "Dark Water," it was revealed that the Master had become a female incarnation or "Time Lady," going by the name of "Missy" (short for Mistress, the feminine equivalent of "Master"). This incarnation is played by Michelle Gomez.