The Doctor

The Doctor, formerly known as Dr Simon Tam, is a boss-type zombie that appears in a few fanon maps, originating in Krankenhaus der Toten.

Overview
The Doctor is a unique zombie that appears randomly at the beginning of round through a (non-damaging) explosion of black flames. The Doctor will alternate between running and walking as it attempts to approach player and inject them with a syringe. If it gets close enough to a player, it will grab them, inject them, and then throw them away. The injection will make the player unable to sprint and give them slightly blurred vision for 15 seconds. The Doctor will then chase anybody it has injected (will only attempt to inject another player if they are closer) and attempt to attack them with a bonesaw, which will instantly kill a player who doesn't have Juggernog. (Doktor Vodka will also prevent the player from dying to this attack, despite not providing a health boost.)

Killing the Doctor is not an incredibly difficult task. A few shots from the Surgeon or Wonder Waffle AE-7 will take him down quickly. Otherwise, sustained shots from an automatic weapon can take him down reliably. The player who kills the Doctor is awarded 1000 points.

Background
Dr Simon Tam was a surgeon working under Viktor Samarov. Despite being a talented surgeon, Dr Tam was drunk when assisting Viktor with surgery on a John Doe, causing his death. Dr Tam panicked and blamed the incident on Viktor, who had his position as head surgeon revoked. He was replaced by Dr Tam.

Dr Tam met his untimely death when Viktor retaliated at the start of the apocalypse by injecting him with an anaesthetic and then performing surgery to take out both his kidneys.

Trivia

 * Dr Tam's name is a reference to the cancelled TV show Firefly.