The Gilded Age Season 4 Cast: Meet the Cast and Characters Joining HBO Drama

Jim Gaffigan joins Season 4 as a real-life historical figure, Grover Cleveland, the 22nd and 24th President of the United States. According to the character description, he “comes to New York to curry favor with the elite class.” In the new installment, Cleveland serves as the guest of honor at a high-society dinner hosted by Agnes van Rhijn.

Where you’ve seen Jim Gaffigan: Chappaquiddick, American Dreamer, Peter Pan & Wendy, Running on Empty, Unfrosted, Linoleum 

Neal Huff portrays another real-life historical figure, John D. Rockefeller, in Season 4 of HBO's The Gilded Age. The character is described as a “famed businessman and oil tycoon. A thin, self-made man of humble origins, now one of the richest and most powerful in the world. A devout Baptist and philanthropist, he does not always see eye to eye with his fellow robber barons.”

Where you’ve seen Neal Huff: The Front Room, Beach Rats, Coin Heist, Radium Girls, Runoff, Meek's Cutoff

Dennis Haysbert makes his debut as Dr. Reginald Harris, a renowned physician who serves as a mentor to Dr. William Kirkland. The official description states that Harris “visits New York to fundraise for the Freedman’s Hospital in Washington, DC, and makes a surprising connection.”

Where you’ve seen Dennis Haysbert: The Unit, Secret Obsession, Far from Heaven, Waiting to Exhale, Send Help

Maggie Kuntz is cast as Fiona Summers, “cousin to the prominent Astors.” It has also been revealed that she is a “free-spirited young woman from a good family who is not afraid to explore the limits of convention.”

Where you’ve seen Maggie Kuntz: Her Broadway performances, including The Outsiders and John Proctor Is the Villain

• Adrienne Warren as Ava

• Andrew Burnap as Porter

• Elizabeth Marvel as Nurse Virginia Saville

• Dallas Roberts as Daniel Manning

• Taylor Trensch as Oliver

• James Scully as Lee Klein

• Bonnie Milligan as Knapp Curtis