Designated Hero: Brandy is incredibly selfish, Whiskers is really stupid and both of them tend to cause just as many problems as they solve. Fortunately, they're both still good enough to notice when they're causing problems and are definitely morally better than Gaspar.
Ear Worm: The theme song, performed by Lou Bega of "Mambo No. 5" fame.
Tastes Like Diabetes: In Paw And Order, Ed the otter tells a very sappy story about a turtle named Dougie.
The Woobie: Pretty much everyone except Margo (Brandy and Gaspar are Jerkass Woobie). Ed Otter and Lola Boa are probably the greatest examples, though. Ed goes through a serious case of Break the Cutie in The Big Game and gets severely verbally abused by Mr. Whiskers in The Monster Of My Skin. Lola Boa, well, it isn't easy being a snake and all.