George Clooney and Julianna Margulies share concerns for ER revival during virtual reunion with cast

George Clooney Reunites With 'ER' Cast and Fans Can't Get Enough of Their Friendship

‘ER’ Cast Then & Now: See George Clooney, Julianna Marguiles & More

Julianna Margulies says her and George Clooney ER characters' chemistry was fueled by real crushes