The most important part of a character’s personality are their flaws, so think about them (and no, “prefers to work alone” is not a good flaw)
What’s the most common flaw between all your characters? Did you decide to make them that way or did it develop over time?
All my Good characters are very impulsive, and my Evil characters can’t trust other people very well. Does anyone have advice for getting along with other characters when you’re a scheming or dedicatedly evil person?
My evil wizard thinks she’s better than anyone else and cooperates with her party because it makes things easier for her. There’s no point to argue with them, it’s a lot easier this way
My good characters usually have massive martyr complexes my neutral chars are massively vindictive and quick to pass judgement and my evil characters are so prideful one of the died cus a cleric bet he wouldnt surf a wave of lava what he did next may shock you