Peter Masterson is a boy who lives in Holby.
On 15 September 2007, Peter injured his distal tibia after failing to perform a stunt on his bike. He was admitted to Holby City Hospital's emergency department, and F2 Ruth Winters believed that his foot was at risk of vascular compromise; senior house officer Gurpreet "Guppy" Sandhu argued that his foot needed to be repositioned. However, when Peter began shouting in agony, consultant Adam Trueman agreed with Ruth's assessment and decided to immediately manipulate it. (CAS: "Meltdown")