For today's spoilers, we learned that someone from Casey's family is visiting. EW has the juicy details, keep reading!
If you thought Casey’s issues with the dirty cop were the peak of his personal troubles this season, just wait until you see what drama unfolds later when we get a peek into his family life. In an upcoming episode, we’re going to meet Casey’s mom (Kathleen Quinlan) and learn about a tragic incident that resulted in her incarceration.
'Chicago Fire' airs every Wednesday on NBC.