|Merwyn the Malicious|
Merwyn the Malicious was a medieval wizard credited with the invention of many unpleasant jinxes and hexes. He appeared on a Chocolate Frog Card. He possessed a hooked wand. There was a portrait of Merwyn hung at Hogwarts Castle, guarding a secret shortcut between the third-floor landing of the Grand Staircase and the Entrance Hall side room. The password required to gain access to said shortcut was "Malevolence".
- Harry Potter and the Philosopher's Stone (video game) (Appears on a Famous Wizard Card)
- Harry Potter and the Chamber of Secrets (video game) (Appears on a Famous Wizard Card)
- Harry Potter and the Prisoner of Azkaban (video game) (Appears on a Famous Wizard Card) (Appears in portrait(s))
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