“Being a textbook mascot character: Teddie is usually bubbly and cute and is known to lighten the mood when investigating the case, much like Chie. Possibly due to being a Shadow unfamiliar with the human world, or perhaps due to being a cartoon bear, Teddie has a lot of childish naivety, innocence and is pure of heart. He does not know a lot of human customs, does not know what "scoring a hot stud" means or what a "manwhore" is.[4] This results in him having a lack of social boundaries, such as when he flirts with Chie and Yukiko, although he fails every time.”

“After slowly facing himself and his confusion surrounding not knowing who he is, Teddie becomes more curious of the real world and begins to be genuinely impressive with his personality even if slowly. Aside from growing a human body, he does develop a charisma and a witty way of speaking that reflects his personality, making him a kind of a prankster.”

Voice Example

https://youtu.be/6dw7F60LgxE?si=KFTFnTs7gYcK065u