Before you say anything: HelloKevin is great, just confused on his existence is all.
Reasons: Puffball - I love Puffball I think she's a great antagonist and her dynamic with Fries and GB were great. Bell - I don't know why her voice always annoyed me, not her actions most of them made sense. I just don't like her voice. Marker - I don't dislike him, but Marker hasn't caught my interest for a very long time and yet he is still loved. Lightning - Got out way too soon, I wished we got to see more of him. Match - I mean I get she was paired up with Pencil, but c'mon less then Roboty is outrageous. I feel like she had great potential too, but at least she might get more screentime in the future because of the ending of Tpot 14. Book - Idk I just feel like a Book Firey Speaker Box - I wished they upgraded it a little, not too much but make him resemble Firey a little more, like they did with Puffball Speaker Box (Talking about the Bfdia design, not the Bfdi one I understand why it looks like that). TV - I don't hate TV as much as others, I just wish he was more interesting. I say Tpot 14 was his best episode in a while but still nothing outstanding yet. Leafy - I still love Leafy, yet I do understand why people dislike her. I just wish we get to see more of Leafy manipulating skill in Modern Leafy. Two - Announcer was a close second, but yeah, no surprise Two is the best host (In my opinion). Announcer and Two are easily the best two hosts. Tape - I don't know I just really like Tape. If there is another season Tape better be in it. HelloKevin - I get he was a joke character, I just wished we got to see him get an object form (Like a Beanie) in the actual show just a small cameo. (Also, I like Nonexisty and I just didn't want to put them in there)