Jane Galloway Heitz who starred in TV series The Big Bang Theory and Glee has died.

The 78-year-old actress also had roles in a variety of shows including Shameless, Grey's Anatomy, Prison Break and CSI.

According to The Sun, Galloway Heitz died from congestive heart failure.

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She is survived by her two children and three grandchildren.

In The Big Bang Theory, Galloway Heitz played the role of Mildred, and in Glee she played Lillian Adler - the club director of the glee musical program at William McKinley High School.

She is the third cast member of Glee to die - following the deaths of Cory Monteith (Finn Hudson) in 2013 and Mark Salling (Noah "Puck" Puckerman) in 2018.