This role is that of the character but also the main narrator for the story. 
The smartest person on the planet and the genius on the good guys team. She's a mad scientist who isn't actually all that mad. She craves knowledge and information like no other and is always running tests or experiments. If she really gets into something she might speak faster n faster throughout the convo because her brain is moving to fast. She has a positive attitude majority of the time and doesn't stress about most things. She always knows she can think herself out of a sticky situation. She knows she's the smartest on earth but doesn't let that get to her ego. Or at the very least she tries not to. She takes pride in everything she makes.

Characters similar to her are Abby Sciuto (NCIS), Doc brown (back to the future), Jinx (arcane), Nobara (jujutsu Kaisen)