- Taylor Kinney (Kelly Severide)
- David Eigenberg (Christopher Herrmann)
- Joe Miñoso (Joe Cruz)
- Christian Stolte (Randy 'Mouch' McHolland)
- Miranda Rae Mayo (Stella Kidd)
- Hanako Greensmith (Violet Mikami)
- Jocelyn Hudon (Paramedic Lyla 'Lizzie' Novak)
- Brandon Larracuente (Sal Vasquez)
Chicago Fire — S2E20
Episode: A Dark Day (I)
Air Date: 2014-04-29
Runtime: 42 min
Overview
Lt. Casey and Dawson volunteer to help at a charity run at Chicago Medical when a massive explosion sends Chicago into chaos. With one of their own missing in the blast, the firehouse is tested like never before. The crossover continues on Chicago P.D. S01E12 8:30 PM (II)