Despair Bear is the akumatized villain of Butler Jean.
As Despair Bear, he is very strict in expectations on how people should act and he is vengeful towards Chloé for being a terrible person. He doesn't like losing, getting very angry and trying to attack Cat Noir despite being very tiny and unable to do damage without the bear.
- Despair Bear is the only akumatized villain to become smaller when transformed and have a tiny size by default. Both Horrificator and Animan can become smaller, although smaller sizes are not their default forms.
- Despair Bear reappears in the two-part special event Heroes' Day.
- Despair Bear appears another time in "Gamer 2.0" for Gamer's powers