Susan Banks is a fictional character on NBC's daytime drama Days of Our Lives. She was played by Eileen Davidson from November 4, 1996 to April 8, 1998, and again in 2014 and 2017. Susan is the eccentric mother of Elvis "EJ" DiMera, and once acted as Kristen Blake's doppelganger. In November 2011, it was announced that Brynn Thayer would take over the role of Susan, since Davidson was committed to The Young and the Restless. Thayer made her brief one-off appearance as Susan on December 7, 2011. In January 2014, it was announced that Davidson would be returning to Days for a three-month story arc after having departed with the show in November 2013. In late September 2014, it was announced that Davidson would reprise her role as Susan Banks; her first time portraying the character in 16 years. Davidson returned to the role once again on November 2, 2017. She reprised the role of Susan's sister, Sister Mary Moira on November 21, 2017. Stacy Haiduk debuted as Susan on August 21, 2018, and departed on November 8, 2018, and appeared for a short stint the following year, last appearing in August 2019. Haiduk later reprised the role, beginning on February 4, 2021.