S3, E13: More clues emerge about the fire that killed Shay, leading Severide to a former nemesis; Shay's sister visits; Cruz is faced with a surprise; Boden tries to help his father.
Robert Knepper
Ellen Woglom
Richard Roundtree
Jon Seda
Annika Boras
Marina Squerciati
Edwin Hodge
Randy Flagler
William Smillie
Brian Geraghty
Anthony Ferraris
