Vincent Trench is a longtime resident of Trollskull Alley. He's a self-employed private investigator who operates out of his business & residence, Tiger's Eye.
 
Vincent usually keeps to himself, only meeting clients in his building or over a drink in a local tavern. He's quiet, speaks concisely, always wears a sharp suit, and a big fan of smoking from pipes.
 
As a private investigator, Vincent can be hired to find out just about any secret in Waterdeep. The price of his services changes according to how difficult the investigation will turn out to be.