what i think the worst thing the main characters (according to fandom that is the main characters) has done it's been a while since i've watched the show so if you can think of anything worse let me know (also frobo and the core's image isn't included because i can only have 10 images)
Anne (image won't show): faking sick that time that gotten the plantairs sick
Sprig: trying to straight up murder sylvia
Hop Pop: Buring the music box
Polly: the civil war thingy, sure it was also sprig's fault, but i also need to put her for some of the blame, and besides sprig's one is worse
Sasha: this one was a little tricky to decide which one was worse: reunion or true colors, but i chose true colors, it is a bigger invasion and she even accompliced grime in thretening to smash andrias
Grime: same as sasha
Marcy: trapping everyone in amphibia
Yunan: i would say trying to kill grime, but he was a fugitive, so instead i'll say marooning marcy and the night guard
Olivia: the worst thing i could think of is spartain kicking everyone in episode 10a of season 2 even though none of them minded
King Andrias: invading earth this one was easy (honorable mention to stabbing marcy in true colors)
The Core: moon smash amphibia go bye bye (LMAO for the way i said it)
Frobo: not much, all i can think of is when he almost destroyed wartwood