Like many young girls who join CHERUB, Lauren had no history of participation in sport and was in poor shape. Since beginning CHERUB training this has improved massively.
Kyle is in perfect health. He has excellent coordination and has mastered some hair raising stunts on his skateboard. He doesn't like team sports, probably because he is smaller than other kids his own age.
However, Kyle's small size is an advantage on missions, when an experienced agent is needed to fill the role of somebody young.
Kerry suffered a severe knee injury that may need further corrective surgery as she grows. She has to avoid aggressive sports such as rugby and unnecessary contact sparring during combat training.
Nicole was seriously overweight when she joined CHERUB. A three month diet and exercise program followed by a second successful attempt at basic training have transformed her into a reasonably healthy young lady.
Rat was brought up under harsh physical conditions in the Australian outback. He was already fit when he joined CHERUB and he has an exceptionally high pain threshold.
The twins are excellent long distance runners. They are not particularly strong, but a fitness program focusing on strength training has helped with this problem.
Ronan is big for his age and strong, though not particularly fast. Ronan makes a fearsome opponent, though he can be unpleasant to weaker opponents and has been punished for bullying.