- David Giuntoli (Nick Burkhardt)
- Silas Weir Mitchell (Monroe)
- Russell Hornsby (Hank Griffin)
- Sasha Roiz (Sean Renard)
- Reggie Lee (Drew Wu)
- Bree Turner (Rosalee Calvert)
- Claire Coffee (Adalind Schade)
- Elizabeth Tulloch (Eve)
Grimm — S1E4
Episode: Lonelyhearts
Air Date: 2011-11-18
Runtime: 41 min
Overview
After investigating a strange cluster of female deaths and disappearances, Nick sends Monroe undercover to get a whiff of a hypnotic suspect. In the meantime, a stranger shows up looking to avenge the death of his friend at the hands of a Grimm, but he'll have to get past Captain Renard.