Donnatello- the twin of Leonardo, he's smart and witty and sarcastic, he makes inventions. He might be autistic

Raphael- a big strong older sibling, he gets weird when left alone.. but loves his goofy family nonetheless.. he acts like the hero of the family

Leonardo- the goofy leader (not really a leader) is goofy, egoistic like donnatello but without the brains, he thinks in the heat of the moment in a fight.. he may have adhd

Michaelangelo- the youngest of the turtles.. he's nice,artist.