Christina Pickles ( born 17 February 1935 ) is an English character actress , best known for her long-running role of Nurse Helen Rosenthal in the hospital drama `` St. Elsewhere '' , for which she was nominated for four Emmys , and for her role as Judy Geller on `` Friends '' .
Christina Pickles ( born February 17 , 1935 ) is an English movie , stage , and television actress , best known for her long-running role of Nurse Helen Rosenthal in the hospital drama `` St. Elsewhere '' , for which she was nominated for four Emmy Awards .