A former witch is on a killing spree and a “West Wing” alum is elected vice president in Thursday’s casting roundup …

Lily Rabe is returning to “American Horror Story” and will play a crazed serial killer in the upcoming “Hotel” installment. Rabe has appeared in all the previous seasons of the FX miniseries. She joins fellow returning cast members like Sarah Paulson, Kathy Bates and Evan Peters in “Hotel,” which premieres in October. Rabe was a fan favorite as the Stevie Nicks-obsessed Misty Day in “American Horror Story: Coven.” [EW]

“The West Wing” alum Bradley Whitford — who last week received an Emmy nomination for guest starring on Amazon’s “Transparent” — will play Vice President Hubert Humphrey in HBO’s “All the Way.” Bryan Cranston stars in the adaptation of the stage play about Lyndon Johnson’s first years as Commander in Chief and his attempts to enact the Civil Rights Act of 1964. [Deadline]

Ludacris revealed his guest-starring character on Season 2 of “Empire,” posting a photo of him donning police gear, standing beside jailbird Lucion Lyons (Terrence Howard). [Instagram]