These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Ensemble Darkhorse: Chuck and Bob. Originally, the writers intended for Chuck to be Peter's murderer. But as season one progressed, Chuck and Bob became so popular the producers realized they couldn't write them off the show, so they changed the identity of the murderer to Chester.