Congratulations, Cara Buono!

According to Michael Ausiello, the actress - best known for roles on The Sopranos and Dead Zone - has landed the role of ER's final fatality. Most likely.

Buono character, Lisa, is a 36-year-old pregnant woman who goes into labor after getting into a car crash. An ER rep would only say that Buono is playing one of ER's "last trauma patients.

The ER series finale is scheduled to air on April 2.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.