Here's what to know. "Grimm" follows Portland Police detective Nicholas Burkhardt, played by David Giuntoli, as he navigates his life and career after finding out he is a Grimm, a supernatural ...

Read on to learn more about St. Denis Medical guest actor, Robert Baker ... and Nick Burkhardt (David Giuntoli) had a feeling there was more to the story. Terrified that he was a dead man walking ...