10 Behind The Scenes Secrets From Doctor Who: An Unearthly Child
2. She's Got Style, She's Got Grace
Susan Foreman was the Doctor's granddaughter, a plot point that was added at the insistence of writer Andrew Coburn. He wanted to head off any intimations about their relationship, as it would otherwise have been deemed peculiar for an older gentleman to travel, alone, in the Time and Space with a teenaged girl. It is in fact Susan who inadvertently starts the whole adventure, as it is she that Ian and Barbara follow after school.
Carole-Ann Ford was 23 at the time of filming, though she had plenty of experience in playing much younger girls, owing to her naturally youthful appearance. For the part, a stylist whose name is now known around the world worked with her.
Vidal Sassoon truly exploded in the hairstyling business from the mid-60s onwards, so frankly Doctor Who got in there just before he would have become unattainable. He would become famous in the mid-60s for the bob-style haircut, something that is apparently in Ford's hairstyle in An Unearthly Child.
As Doctor Who deals so heavily with time travel and its effects, it only makes sense that they would be able to capture the man's genius at a time where it probably wouldn't have cost anywhere near as much as it would by the time he reached his peak.