Guest Stars Jon Seda as Detective Antonio Dawson Melissa Ponzio as Donna Boden Jeff Hephner as Jeff Clarke Sophia Bush as Detective Erin Lindsay Brittany Curran as Katie Nolan Daisy Betts as Firefighter Rebecca Jones Christine Evangelista as Paramedic Allison Rafferty Jake Weary as Vince Keeler C.J. Adams as Nathan Marks Co Starring Randy Flagler as Firefighter Harold Capp DuShon Brown as Connie Kurt Ehrmann as Chief Joel Tiberg Gene Weygandt as Deputy District Chief Lionel Jones Eric Hoffmann as Instructor John Gawlik as Officer Banks Jennifer Anglin as April Nolan Clancy McCartney as Tommy Boylan Kris Wheeler as Thurber Natalie Guzman as Kid Tania Richard as Kristel Steve Schine as Gatins Duncan Keith as Himself Brent Seabrook as Himself Stephanie Quirk as Nicole Sandra Delgado as Miranda Norm Boucher as Russell Natalee Arteaga as Elaine Michael Hahalyak as Marty Greta Honold as Neurologist Dana Gilhooley as Nicole's Mom Bobby Rafferty as Jacob April Dawn Rawlings as McCallum Uncredited Anne Lockhart voices Dispatcher