Take a look back at some of the more memorable casting changes in the history of television.
As Harrison's character was gradually phased out during season six, in came nurse Terri Alden, played by Priscilla Barnes, who would stay for the show's final three seasons.
Jessica Kourkounis/Getty Images
Pancho Bernasconi/Getty Images
Christopher Polk/Getty Images for NARAS
WYFF via CNN Video
Brad Barket/Getty Images
Ilia Yefimovich/Getty Images
It's easy to upload your photos and/or videos on News8000.com. Once you do, we'll share your upload with the community!
No email address was supplied by
To complete your registration on this site, please supply an address.
Please confirm or modify the email address to which you will have subscription offers sent.
For a more personalized experience, please supply the following optional information.