The Census Taker: www.hulu.com/watch/4165 Christopher Walken at his weirdest and most Walken.
Alec Baldwin on "Doctors, Nurses, and Patients" as the vapid actor who can't pronounce basic medical words. I.e. urine becomes "you-rine," and esophagus becomes "esso-faygus." It's classic, but there doesn't appear to be video anywhere.