Who's a character from another universe, who just so happens to be in a Hogwarts house?

The only factor to keep in mind is that they must have referenced Harry Potter in some way shape or form :D

Taking an example, Scott Lang from the MCU could be considered since he's a Potterhead (shout out to @Shreevallabh Saraswati for making me realise this) since he said Wingardium Leviosa in the Zombie episode of what if :)

Anyways, I'll go first, Deadpool; canonically a Hufflepuff!