她最初的百老匯起點是作為助理舞台編排,1943年的時候她也僅僅作為舞台劇 The Voice of the Turtle的一個替補演員。她參演過眾多劇演,包括了 Picnic, The Bad Seed, A View from the Bridge, A Memory of Two Mondays, The Dark at the Top of the Stairs, A Family Affair, Barefoot in the Park, Butterflies Are Free, You Know I Can't Hear You When the Water's Running. 她曾獲得過"Tony Honors for Excellence in Theatre,",2000年的"Drama desk Award"以及1953 Theatre World Award(憑藉在Picnic中的演出)1972年Eileen又憑藉在《蝴蝶小姐》(butterflies are free)中的演出獲得奧斯卡最佳女配角獎。Eileen Heckart
婚姻
1942年Eileen嫁給了John Harrison Yankee Jr,令人悲傷的是,1997年Yankee先生離開人世了。而他們的兒子Luke Yankee 正是 Just Outside the Spotlight: Growing Up with Eileen Heckart一書的作者。