Amanda Krueger is Freddy's mother. She decides to become a nun, chooses Mary Helena as her religious name and is assigned to Westin Hills Hospital. Amanda is accidentally locked inside with psychopaths and killers for several days at Christmastime. Beaten and raped, when she is found she is barely alive and pregnant. In September 1942, Amanda gives birth to Frederick Charles Krueger; she gives him up for adoption, rejecting her son because the circumstances of his conception make him "an abomination to God and to man". Amanda follows his trial for the murder of several children in Springwood, and supposedly hangs herself after his release; she actually bricks herself into a room in the tower of the hospital's abandoned psychiatric wing out of guilt, where she dies. Her body is never found, and she has an empty plot in Springwood Cemetery; like her son, her spirit is uneasy. As an elderly nun, Amanda returns to help Dr. Neil Gordon defeat Freddy. She returns in Dream Child in her young form, brought back by Freddy to resurrect him; her son keeps her from telling Alice Johnson how to stop him. When Alice tries to find Amanda in her dreams, Freddy lures her away by attacking her friend Yvonne Miller (forcing Alice to rescue Yvonne). While Alice tries to fight Freddy, she sends Yvonne to Amanda's resting place to free her. Using Alice Johnson's child (Jacob Daniel Johnson) and his power to revert Freddy into a child, she absorbs him into herself in an attempt to contain him.
In the comic book series Freddy vs. Jason vs. Ash: The Nightmare Warriors, Amanda is summoned by Jacob to help defeat her son. Freddy wounds Jacob Johnson (weakening his power), making Amanda disappear.