Guest Stars Samuel Hunt as Craig "Mouse" Gurwitch Kevin J. O'Connor as Commander Fischer David Eigenberg as Lieutenant Christopher Herrmann Christian Stolte as Firefighter Randy "Mouch" McHolland Josh Segarra as Justin Voight Oliver Platt as Dr. Daniel Charles Madison McLaughlin as Michelle Sovana Jon Sklaroff as Schultz Co Starring Melissa Carlson as Meredith Olinsky Caroline Neff as Olive Morgan Voight Mark Allan Stewart as James Beckett Caitlin Looney as Shelby Shane Woodson as Nathan Whitcomb Christopher Meister as Larry Klamp
