Carol Olston is a key supporting character in the anime series 'Tomo-chan wa Onnanoko!' She is a cheerful and quirky girl of British descent, attending the same school as the main characters. Known for her distinctive blonde hair and ditzy yet endearing personality, Carol is often seen with a bright smile and a carefree attitude. Despite her seemingly air-headed demeanor, she is quite perceptive and genuinely cares for her friends. Her role in the series includes providing comic relief and supporting her friends through various challenges, often with her unique perspective.