Elizabeth Butler, commonly referred to as Beth, is a character from Kuromukuro. She is an adult woman with blonde hair that reaches chest length, which she typically wears in a side ponytail, and blue eyes. Her role in the story is that of an operator working in the defense forces at the control room of the UN Kurobe Laboratory. Within this capacity, she is part of the support team monitoring and coordinating activities related to the lab's operations.

Beth possesses a caring nature and is described as having a big heart, indicating a kind and empathetic personality. In terms of her relationships with other characters, she is established as a good friend to Rita. Beyond her role as a control room operator and her friendship with Rita, specific details regarding her background, personal motivations, key relationships with other members of the cast, her character development throughout the series, or any notable abilities she may have are not available.