In addition to Slattery and Hendricks, the series also features Mad Men alum and producing partner Blake McCormick, and writers Semi Chellas, Marie and Andre Jacquemetton.
Matt Weiner has plucked two Sterling-Cooper alum for his new history-spanning Amazon drama The Romanoffs, as Christina Hendricks, John Slattery and more join the cast.
The series is estimated to cost an impressive $50 million for Amazon and The Weinstein Co., down from the initial $70 million reported.
Per Variety, Hendricks and Slattery join a cast that includes Oscar-nominee Isabelle Huppert, Boardwalk Empire alum Jack Huston, Amanda Peet and Marthe Keller.