The announcement was made by Ben Silverman, co-chairman of NBC Entertainment and Universal Media Studios.
"'ER' is one of the greatest shows of all time and we can't wait to deliver to the audience the fantastic stories the series is known for," Silverman said in a statement. "We will introduce new characters to the great ensemble."
McPhee, Cokas 'working on their marriage' after affair
LGBT community has 'bullied the American people': Bachmann