Cyrus Belview (Curse of Strahd)

In this 5th Edition remake of I6: Ravenloft, Cyrus Belview is a mongrelman. He is also not as harmless as his other counterparts for two reasons. First, if the player characters follow him, he triggers the elevator sleep gas trap in area K61 of Castle Ravenloft. Secondly, he unknowingly wears a hag's eye created by Morgantha, allowing the night hag to spy on the events going on in Castle Ravenloft.