Gillian Roberts

 was a close friend of Susan Foreman and John Brent at Coal Hill School.

She enjoyed giving nicknames to the people she knew. She would often call John "The Martian" and Susan "Forehead" after her name. She was also a skilled fighter, often getting into fights with school bullies.

In 1963, she and her friends encountered an anomaly called The Cold.

Upon turning 16, she left school and left to marry Zack, much to the annoyance of John. (TN: Time and Relative)

Behind the Scenes

 * Gillian was named after Gillian, the granddaughter and companion of the First Doctor in the TV Comic series.