- 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 — S4E2
Episode: Octopus Head
Air Date: 2014-10-31
Runtime: 43 min
Overview
The Gedächtnis Esser continues to steal memories and Captain Renard's mother visits him in the hospital to try to save his life. Meanwhile Wu confronts Nick about Trubel and Nick and Adalind share a psychic connection.