I am curious if cancers are just rogue cells how are there different types?

Here's why: Each type of cell in our bodies -- and there are a couple of hundred subtypes -- gives rise to several different types of cancer, based first on what's caused the cell to differentiate in the first place. Cancers are of course driven by accumulated mutations that make the cells "rogue" (if you like), prone to overgrow and invade. Each named cancer typically carries different mutations.