Joker: Folie à Deux- Full list of cast 

Joker: Folie à Deux, the eagerly-awaited DC sequel, is gearing up for its theatrical release. The sequel to the 2019 Joker movie finds Joaquin Phoenix reprising his role as Arthur Fleck in the events following the first movie. He is joined by Lady Gaga, who is making her DC debut as Harley Quinn.

The hype around Joker: Folie à Deux was triggered when the movie released an exciting trailer in July that gave us a glimpse into the fantastical music sequences and the relationship between the central characters, Arthur Fleck and Harley Quinn. After two months, the movie is here with a decidedly mixed response from critics.

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The full cast list of Joker: Folie à Deux

Find below the full cast list of the Joker sequel.

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Joaquin Phoenix as Arthur Fleck / Joker

Phoenix plays the lead role as Arthur Fleck, the mentally ill, nihilistic criminal with a clown-inspired persona who was formerly an impoverished party clown and aspiring stand-up comedian.

Joaquin Phoenix is an American actor best known for his dark, unconventional, and eccentric roles. He is a critically acclaimed actor with various accolades, including an Academy Award, a British Academy Film Award, a Screen Actors Guild Award, a Grammy Award, and two Golden Globe Awards.

Phoenix is known for his portrayal of Commodus in the historical drama Gladiator (2000) for which he received a nomination for the Academy Award for Best Supporting Actor. Some of his other works include Signs (2002) and The Village (2004), Hotel Rwanda (2004), and Walk the Line (2005).

Following a brief sabbatical, Joaquin Phoenix once again returned to screens with The Master (2012) and the romantic drama Her (2013). He also won the Cannes Film Festival Award for Best Actor for the psychological thriller You Were Never Really Here (2017).

More recently, he has starred as the titular character of Joker (2019), for which he won the Academy Award for Best Actor, and C'mon C'mon (2021), Beau Is Afraid (2023), and Napoleon (2023).

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Lady Gaga as Harleen "Lee" Quinzel /Harvey Quinn

Harley Quinn is a patient at Arkham State Hospital who meets Arthur taking a strange liking to him, which eventually turns to obsession and forms a deadly romantic relationship with him. Lady Gaga portrays this role in Joker: Folie à Deux.

Lady Gaga is an American singer-songwriter and actress known for her versatility in the industry. She made her breakthrough in the music industry with her debut studio album, The Fame, and its number-one singles "Just Dance" and "Poker Face". Her five succeeding studio albums all debuted at the top of the US Billboard 200.

Lady Gaga ventured into acting with the miniseries American Horror Story: Hotel (2015–2016) and the musical film A Star Is Born (2018). She followed it up with a starring role in the film House of Gucci (2021) and now Joker: Folie à Deux (2024).

Lady Gaga is also the first woman to win an Academy Award, BAFTA Award, Golden Globe Award, and Grammy Award all in one year.

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Others starring in Joker: Folie à Deux

Alongside Phoenix and Lady Gaga, the Joker sequel stars the following actors in their respective roles:

• Brendan Gleeson as Jackie Sullivan, a guard at Arkham State Hospital
• Catherine Keener as Maryanne Stewart, Arthur's lawyer
• Zazie Beetz as Sophie Dumond, a single mother and Arthur's former neighbor with whom he had imagined being in a romantic relationship
• Steve Coogan as Paddy Meyers, a TV personality who interviews Arthur in Arkham
• Harry Lawtey as Harvey Dent, the newly elected assistant district attorney who plans to have Arthur punished
• Bill Smitrovich as Judge Herman Rothwax

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Catch Joker: Folie à Deux in theaters in the US from October 4, 2024.