When a Japanese ballet dancer is mysteriously murdered, Castle and Beckett's investigation into her secret life uncovers evidence that she was killed by a ninja, and now that ninja is coming after them.

Anna Moon, Arden Cho, Arye Gross, Brittany Ishibashi, Caitlin Gold, Cameron Deane Stewart, Carin Chea, Chris Bruno, Faye Viviana, Mike Moh, Momo Yashima, Ron Yuan, Tarri Markel