- 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 — S4E21
Episode: Kind of a Crazy Idea
Air Date: 2016-05-03
Runtime: 42 min
Overview
Dawson saves a young boy from an apartment fire. Kidd's idea for Molly's doesn't go as hoped. Severide hits a wall while advocating for new fire masks. Cruz and Brett utilize a secret weapon to get Otis to see Dr. Halstead take a blood test.