To this end, Crouch used Polyjuice Potion to take on Moody's form to replace him at Hogwarts, successfully fooling staff and pupils alike. He imitated many of Moody's normal habits, including regularly drinking Polyjuice Potion out of Moody's hip flask. Doing this allowed him to impersonate Moody for almost the whole year without raising suspicion. [15] Barty Crouch Junior (disguised as Alastor Moody) hired as the DADA professor, drinking Polyjuice Potion

Vance was killed by Death Eaters in 1996, while Podmore was imprisoned in Azkaban for attempting to open the door of the Department of Mysteries. Moody didn't know it and was angry with Podmore, because he had taken his Invisibility Cloak.Constant Vigilance!" is Moody's supposed catchphrase. However, the phrase is never actually uttered by Moody, only by Barty Jnr when impersonating him. In the film adaptions, the phrase is omitted altogether (aside from one use that was edited out).

Harry could not quite comprehend it. Mad-Eye dead; it could not be... Mad-Eye, so tough, so brave, the consummate survivor." — Harry Potter's reaction on Moody's death [src] Invisibility Cloaks: Moody possessed two Invisibility Cloaks, though he lent one to Sturgis Podmore, which was never returned. [29] It is also possible that Moody's travelling cloak was one of his Invisibility Cloaks. Barty Crouch Senior: " Rosier is dead. He was caught shortly after you were too. He preferred to fight rather than come quietly and was killed in the struggle." Alastor Moody: " Took a bit of me with him, though." — Moody's lethal duelling prowess [src] Neville Longbottom wears a similar robe, albeit open to reveal the dark bluish grey jumper underneath. Both torsos were introduced last year, so have appeared elsewhere. Neville's double-sided head is less common, returning from 75969 Hogwarts Astronomy Tower and including suitably prominent teeth. His smiling face looks nice, but something more expressive would have been perfect for Neville's harrowing experience in Moody's class. He also speaks with Gleeson's natural Irish accent, although his nationality appears to be Scottish, seeing as his impostor wears a kilt in the film adaptation of Harry Potter and the Goblet of Fire during the Yule Ball. His nationality is never identified in the book, although Moody is a surname common in both Ireland and Scotland, while Alastor (sometimes spelt Alistair) is a Scottish first name.Potions: As an Auror, Moody was proficient in potion-making, as he had to have received at least an Exceeds Expectations in his O.W.L. and N.E.W.T. for this subject. [45] Indeed, Moody was capable of brewing the highly complex Polyjuice Potion, making enough of it to disguise all seven of the willing participants of the Battle of the Seven Potters as Harry Potter, to ensure the latter's safety, showing his great talent in this field. [12] Harry Potter: Hogwarts Mystery, Year 7, Chapter 32 ( The Wizengamot Trial) - Assignment "To Catch a Prankster"