Rumer Willis by Theo Wargo/WireImage.com
will guest on
this season, playing a young woman who shares a name with
's Mac Taylor.
The CBS procedural's milestone 100th episode, airing Nov. 19, finds Taylor's team looking for a serial killer targeting people with the name, a network rep confirms. The casting scoop was first reported by
Late last month, Willis - daughter of Bruce and Demi - scored a role on