‘Firefly Lane’ Star Sarah Chalke on the ‘Super Humbling’ Challenge of Playing Kate at Ages 18 and 42

It’s not every day you see an actor play a character from college freshman to middle-aged divorcee. But Sarah Chalke, along with her “Firefly Lane” co-star Katherine Heigl, was up for the challenge.

“It’s such a cool experience, because you have so much material,” Chalke said in an interview with TheWrap. “To find Kate at 18 versus up in her 40s, that was one of my favorite parts of the job. … Seeing her go from this very insecure, vulnerable kid to growing up and trying to find her voice, to wanting to be married and have kids and live that life, and then realizing that she actually would like to find that other creative part of herself again.”