Wander Over Yonder is a tv series by Craig McCracken that began in 2013 and ended in 2016. I recommend it, it is about a little alien named Wander who goes around helping everyone including redeeming villains. Lord Hater is one villain who never gets redeemed but Wander always tries to do his hardest for him.

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If only that were to have applied to a certain trio they would have reformed.