Marc Forster is a man who lives in Holby.
On 25 May 2019, Marc convinced his brother Aidan to help him break into Terry Poole's house, claiming that it would appease their landlord and help him afford to go to college. Once Terry left, the brothers entered the house and searched for money and valuables to steal, but Aidan insisted that there was nothing of value for them to take. Aidan began to panic, and Marc gave him a bottle of medication to calm his nerves.
When they entered Terry's daughter Georgy's room, she screamed in fear. Terry soon returned and attacked Marc and Aidan. During the fight, Marc tried to help Aidan up, but he accidentally dropped him onto a rake. With his brother bleeding profusely, he immediately called for an ambulance.
At Holby City Hospital's emergency department, Aidan was taken into resus, and staff nurse David Hide asked Marc if he had taken any drugs. Marc gave him a box of medication that was prescribed to neither him or his brother. In cubicles, Terry bargained with Marc and offered to not press any charges if he did not speak to the police, but Marc assumed that something had happened to Aidan and rushed back to resus.
Later, charge nurse Jacob Masters confronted Marc after he found out that the prescription drugs belonged to his mother Omo, and Marc explained that he received them at a pub from a woman named Jet. That afternoon, David informed Marc that Aidan was going to make a full recovery, and Marc asserted that they resorted to burglary to help get him through college. However, David was sceptical and asked him how much of the money would have actually gone towards funding his drug addiction. (CAS: Episode 1128)