Officer Linda Knox is a prison guard that is seen at occasions. Such as the time when she is told by Vera Bennett to follow Noeline Burke to the toilet. She waits outside the toilets while Noeline makes her way in to the rec room to smash the new color TV that would be presented to the prisoners later that afternoon. Noeline apparently makes her way back to the toilet area without being seen by Knox. She is referred to as "Linda" by Jim Fletcher on several occasions.