Helen is a disabled girl who is
Chris Thorndyke's classmate. She sometimes accompanies
Sonic and his friends on their adventures, and most of
episode 14 is about her. Helen is 126 cm (4ft 2in) tall, weighs 36 kg (78lb), and is 11 years old. When they are young, she shows no signs of having romantic feelings toward Chris, but in the future, Helen and Chris are romantically involved with each other. Helen's
Japanese voice actress is
Noriko Hidaka, and in the dub she is voiced by
Amy Birnbaum.