Lol...well here we go...may the tomato throwing and spitting begin... <_< 
Not the tomato! Think of the poor tomato!
10. Mr. Thicknose: This character annoyed me, due to his pretentious nature, and his relatively obvious "realization" he gains in his only movie, along with the fact that he became a semi-recurring character in the TV Series. However, I understand that he fills a role in the franchise that no other character really does, that of a smart (if not wise) elder figure who can supply factual information, so I don't let him bother me that much.
9. Milo, Lydia, and Plower: This trio appeared in only a single television episode, but their gimmick (that they thought Spike was a god) annoyed me and distracted from the more interesting plot of the rest of the Gang attempting to rescue Spike. However, their limited appearance makes them easy to tolerate.
8. Petrie's Siblings: Oh boy. Whiny, demanding, not understanding, and yet they shared in the glory of the 12th movie that only Petrie had to really work for. The fact that they made life hard for Petrie didn't bother me as much as it might have, and you'll see why if you keep reading.
7. Tippy: This one isn't really Tippy's fault, but she was remarkably obtuse by not noticing Ducky's stress over becoming separated from her brother. I mean, at the moment of truth, Spike is trying to decide, Ducky is standing
right there, and Tippy thinks nothing of begging Spike to turn his back on his sister and leave. She was also an idiot in her only television episode, however, I can chalk both character faults up to her being very young, and I understand why she would want another younger spiketail to live with. It was also a well-thought out dilemma for Spike, a usually ignored character, to deal with.
6. the young sharptooth Chomper meets in television episode "The Lonely Journey." Basically, Chomper tries to make friends with it, but it tries to bite him and then summons it's mother to chase Chomper off. This is in no way it's fault; it's got no reason to trust Chomper, and every action it makes is justified. Doesn't make me like him any more.
Note: For these last five, I've given reasons why it makes sense to have the characters this way. It's at this point that the characters stop receiving my grudging acquiescence and only my dislike.
5. Old One: As her character represented unyielding authority and a foreign leader, this character was bound to provoke my ire. Her warnings of the Death Valley's destruction were tiresome (she must not be aware this is a kid's show), and her disinterest in attempting to rescue Grandpa did not engender feelings of good will.
4. Rhette: An obvious one. I don't think I need to give rationale, as he's almost universally disliked by fans.
2. Loofah & Doofah:
What is there to say? Obnoxious, too dumb to live, and immune to karma, they also represent the film that crippled the franchise. They were the first thing to come to mind when I saw this topic thread. The only yellow belly that didn't get on my nerves was Foobie, both because he seemed mildly intelligent and because he didn't talk.
3. Petrie's imaginary friend: Hoo boy. The song sucked, the look reminded me of the big-lipped alligator from
All Dogs Go To Heaven, and it served absolutely no point to the overall plot. It's also primarily associated with...
1. Petrie: Petrie has always been my least favorite main character. He was clearly designed to be comic relief in the first film, a role which in my opinion he failed miserably at, and his Disney Death at the end was sadly predictable and failed to suspend my disbelief. His all-time low had to be "The Bright Circle Celebration", when he openly worships the sun as if it were some sort of god, and the episode decides to teach Cera (the "nonbeliever") a lesson in listening to her friends. Plus I have to see him a lot more than every other character on this list.
