For a number of months, Bridgeport High School graduate Sarah Timms Chittaro has made various cameo appearances on "Chicago Fire," "Chicago P.D." and "Chicago Med." The NBC shows  are filmed in Chicago, where Chittaro and her family live. On more than one occasion, she has appeared as a reporter. In tonight's episode, Chittaro's children Isabella and Christopher will make their debut with the NBC series. They will play the part of children whose house is on fire. They will be seen standing by the burning building. 

 

"It's going to be quick, but I hope we can see them," Chittaro said. 

 

In its fourth season, "Chicago Fire" airs 10 p.m. ET on NBC.