Castle: Captain Gates related casting scoop from TVGuide's Natalie Abrams

Here's some scoop on Castle from TVGuide's Natalie Abrams' Mega Buzz column, which was posted on 3/4/14.

What's coming up on Castle? — Jonah
Get ready to meets Capt. Gates' sister! Eureka star Salli Richardson-Whitfield will play Elizabeth Watts, a U.S. Attorney with ties to Castle and Beckett's latest murder. "We end up with a victim who it turns out is a confidential informant for the U.S. Attorney's office," creator Andrew W. Marlowe tells us. But don't expect a lot of sisterly love during the investigation; they're apparently estranged. "Gates doesn't talk about her," Marlowe says.

Link to the full article:Mega Buzz: Five-0 and Bones' Dangerous Missions and an SVU Breakup - Today's News: Our Take | TVGuide.com