Sometimes the odd stuff in the show can dip into the scary territory.
Season 1
- My Better Half: Otto getting his entire body chopped in half by Symmetric Al. Made even worse by the fact that Otto is screaming for the entire ordeal, impling this is painful as well. Thankfully things turned out well in the end.
- Skip Day: When Olive ended up with an odd disease of the skips, it caused her to skip steps in tasks (and actually skip). But the disease quickly proved to be dangerous, such as when Olive went to go parachuting, but skipped the step of putting on a parachute. Before she knew it, she was falling from several thousand feet screaming for her life. Just imagine what would have happened if Otto hadn't shown up and saved Olive...
- The Perfect Lunch: The Featherites in general. Not only are they extremely picky about their meals and cause "oddness" (natural disasters) if their demands aren't met, they've also mentioned they had five mouths.—One on their their main faces, and four on their wings. Thankfully the four additional mouths were only heard, and were offscreen.
Season 2
- The Scientist: It seems as if everybody in the world has been turned into exercise equipment. Even the villain responsible must have done it to themselves (accidentally?) since nobody is seen trying to break into or contact HQ. And either there's no Odd Squad Space Station, or that crew has also been turned into exercise equipment. Oona seems unconcerned about investigating.
- Odds and Ends: How about the fact that a seemingly harmless child (Ohlm) was actually an evil mastermind in plain sight, bent on destroying Odd Squad, and stealing their plans to villains to help them break in? Good luck sleeping after that episode.
The Movie
- The Daves in general can also qualify. Those creatures are literally destructive forces of nature, as they reproduce at insane rates (1 became 4,100 within the span of five minutes). If those creatures had succeeded and their plan, and stuck around long enough, the entire planet - heck, the entire universe - would be destroyed. Based on Oona's description of the Dave's traits, those little creatures are not to be messed with. They nearly destroyed the city.
Season 3
- The villain Shelley Catessan is one of the most cruel yet. In "The Sandwich Project," she takes great delight in turning the OSMU members and random civilians into sandwiches, and she cackles at the thought that they'll be sandwiches forever. That's pretty much the same thing as mass murder since she wants her victims to be lifeless objects permanently.
- The Shadow can also qualify. "Slow Your Roll" had her hacking into the van and attempting to drown it in the Lake of Goo. However, the Mobile Unit agents are inside of the van, and considering she changed the locks on all of the doors to prevent them from reaching the main control room (never mind the fact that Opal, the agent she has a vendetta against, wanted to stay in the van despite the risks), her drowning the van essentially means that she's planning on taking the agents down into the lake with it. Yep, that's right, this Enfant Terrible wanted to commit an act of murder via drowning. It especially doesn’t help that said Enfant Terrible turns out to be the sister of Opal, making this attempted fratricide.
