Caitlin (Andromeda) here again with Barty Crouch Jnr! He has only been a Death Eater for a few months and the beginning of his fanatical loyalty to his Lord is just starting to develop. He was a Hufflepuff in school and his loyalty (originally for his father) and hard working nature towards the goals of another led him into that house. He is rather enthusiastic about his role that perhaps could annoy the older Death Eaters and he is incognito as both a Death Eater and Wizard.
It was in his sixth year he grew close to a group of boys in Slytherin who led him into the Death Eaters and provided him with a link to Voldemort. I would love for volunteers in that respect and other interaction with Barty.