Neville Longbottom is a Hufflepuff student in Harry's year. When he enters Hogwarts he is shy and often bullied, including once somewhat unintentionnally by Harry. Harry later apologizes to him and befriends him. Neville later becomes a lieutenant in Harry's Chaos Legion.
Neville's parents Alice and Frank Longbottom were Aurors. They reside in St. Mungo’s Hospital (canon) permanently after having been tortured into insanity by Death Eaters Bellatrix Black and Rabastan (canon) and Rodolphus (canon) Lestrange during the Wizarding War.