Harry and Voldemort have always had a lot in common. They were both orphaned at a young age, raised in cold and uncaring environments, and found the home they had never had at Hogwarts. They were both “half-blood” wizards, coming from old magical families but with muggle relatives as well, and neither of them knew about Hogwarts before they turned eleven. They both spoke Parseltongue and had the option to be in Slytherin house, although Harry chose Gryffindor instead. They were both natural leaders who drew supporters to their cause. Harry and young Tom Riddle are even said to look similar.
It occurred to me that Credence from Fantastic Beasts is a lot like both of them. He is also an orphan, raised in perhaps the cruelest situation of the three, by the leader of a group of witch-hunters who is implied to have killed his mother. He comes from a magical background (spoilers for Crimes of Grindelwald suggest he might be a Lestrange), but is raised by muggles and develops an obscurus by trying to suppress his powers. He does not go to Hogwarts and would be unlikely to be sorted into Slytherin; he’s an antagonist, but he is not ambitious or cunning, and is easily manipulated by others rather than being the one doing the manipulating. However, it seems like he’s become close with the Maledictus character, who is now confirmed to be Nagini, so he, too, has a connection to Slytherin house and snakes.
Credence is who Harry might have been if the Dursleys had tried a little harder to force the magic out of him. If, instead of stubbornly ignoring his early signs of magic, they had gone through with Uncle Vernon’s remark that his abilities were “nothing a good beating wouldn’t have fixed”. Credence is like a version of Harry who never got his Hogwarts letter, never met Ron and Hermione, and instead went on living with the Dursleys until adulthood. Like Harry, he is an unwitting host to a dark force he can’t control, which makes him a target for the main villain of the series: for Credence, his obscurus, and for Harry, the fragment of Voldemort’s soul that attached itself to him when he was a baby. In both cases, it seems as if there is no solution other than their deaths. No one survives being an obscurial, and Harry will have to die in order for Voldemort to die. However, they both survive their near-death experiences – at least for now.
Like young Tom Riddle – and unlike Harry – Credence is a creepy teenager who immediately looks like a suspicious character. His body language and way of speaking tell you immediately that there’s something wrong. And you’d be right. But while Voldemort is a sociopath and a vicious killer from a young age, Credence is an emotional wreck terrified of his own powers. He, like Voldemort, kills several people – including his muggle parent – as a young man, but Voldemort’s actions are cold and premeditated, while Credence is literally possessed by a dark force and is not fully in control of or aware of his actions. Credence, much like Dr. Frankenstein’s creation, makes the reader/viewer question who the real monster is: the thing doing the killing, or the person who created it? With Voldemort, no such question needs to be asked. His lonely childhood is not used to excuse or even explain his behavior, and the fact that he was conceived via love potion – the closest thing he has to Credence’s obscurial or Harry’s horcrux status – is something Rowling has described as “symbolic” of his inability to love rather than being the literal cause of it. He is clearly evil through and through.
I just recently read The Cuckoo’s Calling, by “Robert Galbraith” – J.K. Rowling’s adult mystery novel pseudonym. The main character, Cormoran Strike, had a rough childhood. He is not technically an orphan, but he might as well be. Although there is no magic and therefore there are no magical families, Cormoran’s father is wealthy and famous, while his mother was poor and died young. He’s not literally cursed, but things haven’t gone well for him. This is a recurring pattern in Rowling’s work; neither her protagonists and her antagonists come from stable and happy homes or have easy childhoods. Supporting characters like Ron and Hermione are a different story, but Newt Scamander might be the only lead that doesn’t have major family-related baggage.