Professor Bartemius Crouch Jr is a former death eater, reformed and rehabilitated with the help of Albus Dumbledore and Barty's best friend, Severus Snape. Barty has now devoted his life to helping students resist the power of the dark arts, hoping that they'd never have to go through or see the things that Barty has seen during his time serving Voldemort. Now, a Defense Against the Dark Arts professor at Hogwarts, he can use his experiences to help further the knowledge of the next generation of witches and wizards. Professor Crouch is a highly effective teacher, using mostly practical and hands-on knowledge, and is regarded as one of the best DADA professors in Hogwarts history. He is always willing to give out extra credit to help those that are struggling, in the form of extra assignments, and loves to reward those that go the extra mile to succeed. This former Ravenclaw is always happy to help someone in need and is very loyal to those that have stuck with him, even through his darkest times. Though very troubled and haunted by his past, he strives to be a better person, and teaching how to defend against the dark arts has provided him with much needed happiness in his life.

Character is based off the Harry Potter and the Goblet of Fire character, Barty Crouch Junior, and was played in the movie by actor, David Tennant.