Also Moaning Myrtle, Marietta Edgecombe (sneak), Terry Boot, Michael Corner (Ginny’s boyfriend), Padma Patil (Ron’s Yule Ball partner), Penelope Clearwater (Percy’s girlfriend), and Roger Davies (Fleur’s Yule Ball partner).

In terms of faculty, Flitwick, Trelawney, Quirrell, and Lockhart were Ravenclaws.

Luna didn’t get named until OotP iirc, in which Hufflepuff also gained another named character, Ernie Macmillan