“If you told me when I started that Sylvie would end up with Casey,” Kilmer said in a promo video at the time, “I’d be like, ‘Absolutely not, that would be so cool.'”
In March, newcomer Rome Flynn announced his departure following six episodes, with his firefighter character Derek Gibson seeking treatment for a drug addiction.
“Just like all the fans, I was sad to see Gibson leave,” he told Variety. “He was a character I very much enjoyed playing. I had a wonderful experience during my time on Chicago Fire and have great respect for the cast and crew and hope to team up with Dick Wolf again when the time is right.”
Chicago Fire has been renewed for a 13th season, though a premiere date has not been announced.
To find out when your favorite shows are coming back, keep reading.