Helen is a young Human girl from the Sonic X Zone who is without the use of her legs, and thus utilizes a wheelchair in order to get around. She is a friend of Sonic the Hedgehog, Chris Thorndyke, and their various other friends and allies.
- In the Sonic X anime, Helen was shown befriending Sonic apparently independently of Chris and the rest of the human characters, and later joining that circle. During the Metarex season, in which time on Earth had advanced several years as opposed to a few months in Sonic's world, Helen and Chris became coworkers, and it was strongly hinted that a romantic connection had formed between them.
Helen has blonde hair and green eyes, and is usually seen wearing a pink dress.