Charles Milles Manson (née Maddox) was an American criminal and cult leader, famous for his followers murder of actress Sharon Tate on his orders in 1969. He appeared in the Season Two episode 'Merry Christmas Charlie Manson!'. Initially, Manson is filled with rage and psychotic anger. Manson soon has a change of heart and regrets his mass murders after watching Mr. Hankey in The Grinchy-Poo Who Stole Christmas. Realizing what he did was wrong, he changes his tattoo from a swastika to a smiley-face and tries to protect the boys from the gun-happy police. In the end, Manson turns himself in to the police and returns to prison with Howard. He proceeds to write a series of positive help books, but his efforts are met with mockery. However, on Christmas, the boys and their families all come to visit Manson to celebrate. (Source: Fandom.com, CC BY-SA)