tokens: Her talent for impersonation was key in her humorous portrayals of Barbra Streisand , Ethel Merman , Arlene Francis , Pauline Kael , Sally Field , Sophia Loren , Beverly Sills , Lynn Redgrave , Linda Lavin , Bernadette Peters , Liza Minnelli , Connie Francis , Mother Teresa , Joni Mitchell , Alice B. Toklas , Patti Smith , Brenda Vaccaro and Indira Gandhi .