Gloria Elizabeth Reuben (born June 9, 1964) is a Canadian actress, producer, and singer. She is known for her role as Jeanie Boulet on the medical drama ER (1995–1999, 2008), for which she was twice-nominated for an Emmy Award, and for portraying Elizabeth Keckley in the 2012 Academy Award-winning film Lincoln. Additionally, she has been featured in films such as Timecop (1994), Nick of Time (1995), Admission (2013), and Reasonable Doubt (2014). She played Krista Gordon on Mr. Robot (2015–2019), as well as a recurring character on City on a Hill (since 2019). She played Adina Johnson on Cloak & Dagger from 2018 to 2019.