21 Worst Onscreen Moms, From Norma Bates to Peg Bundy (Photos)

TheWrap looks at dysfunctional moms in honor of Mother’s Day, from Norma Bates in “Psycho” to Peg Bundy in “Married With Children” and “Serial Mom.”

“Psycho” (1960)  Possibly the worst mother in Hollywood history (and now on A&E with “Bates Motel”), Norma Bates was so abusive she it resulted in her murder — and those of subsequent innocent victims — at the hands of her son, Norman.

“The Manchurian Candidate” (1962)  Mrs. Iselin (Angela Lansbury) is less a mother and more a secret agent intent on making her son the first puppet President in a Communist conspiracy.