Lucius Malfoy, Harry Potter
There were A LOT of bad dads from the Harry Potter universe to choose from – Tom Riddle Sr., Vernon Dursley, Xenophilius Lovegood, and even James Potter for being such a bully, but Lucius Malfoy definitely takes the cake. He’s spoiled his son so rotten that if anyone so much as bumps into him in the Great Hall, Draco starts screaming, “MY FATHER WILL HEAR ABOUT THIS!” He also forces his only son to work for the Dark Lord when he’s barely reached his 17th birthday, and puts him in a situation where he has to MURDER the most beloved Headmaster Hogwarts has ever known. That whole thing with the vanishing cabinets in Borgin & Burkes? Super messed up. He’s also totally abusive to Dobby, and tricks Ginny Weasley into opening The Chamber of Secrets when she’s like, 11 years old. How has this guy not been thrown into Azkaban yet?