Doctor
Doctor is a Lego bit-character, who in truth does have a larger presence and appears quite often with speaking roles. However he is treated like a common lego background member, and others usually will specifically address the fact that they have no idea who he is. Doctor is not actually a doctor, that is just his name. He was kidnapped along with
Waiterbetty in 2008, but was rescued. He is assumed dead in the attack at the end of that year.