Every year, there are changes to casts on our favorite shows. We have to say goodbye to character we’ve gotten to know and love over a period of time, and we might be wary of welcoming new faces into the fold. But sometimes it’s those who fall into the latter group who become essential to the DNA of a series.
Scroll down as we take a look at some of the essential cast additions who weren’t part of our favorite shows when they originally premiered.
Kit, The Resident
What would have become of Chastain and Dr. Bell (Bruce Greenwood) if Jane Leeves hadn’t joined the medical drama in Season 2? We shudder to think. The orthopedic surgeon went on to become the hospital’s badass CEO, with the best interests of its patients and staff in mind, someone important in Bell’s life as he redeemed himself even before they became involved, and eventually half a couple key to showing two people finding love again later in life.