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.
Alternative Character Interpretation: They're all practically the same person, and very interchangeable with mostly informed characteristics, Caruso and Buzz being the exceptions, so each fan probably fills in the blanks in their own way.
Ear Worm: GOD DAMMIT, GET THE THEME SONG OUT OF MY HEAD!
They Wasted a Perfectly Good Character: Liam from the first episode of season 2, "The World According to Liam". Despite his Asperger's Syndrome setting him back a degree, he proves fundamental to solving the episode's mutant bee problem, and even learns the group's secret. Yet even though they sit together for lunch at episode's end, he never shows up or gets mentioned again that season. Had he did, he would have no doubt proven furthur useful in solving various episodes' problems in the future, and in addition, his debut episode's Aesop would have been better reinforced via consistency, and Liam himself would not have had the unfortunate fate of coming off as a mere Aesop plot device (and the show could have used more recurring characters aside from Fiona's sister).