Joaquin Phoenix stars as Arthur Fleck / Joker in Joker (2019), with Robert De Niro as Murray Franklin and Zazie Beetz as Sophie Dumond.
Main cast
- Arthur Fleck / JokerJoaquin PhoenixMain
- Murray FranklinRobert De NiroMain
- Sophie DumondZazie BeetzMain
Supporting cast
- Thomas WayneBrett CullenSupp
- Penny FleckFrances ConroySupp
- Detective BurkeShea WhighamSupp
- Detective GarrityBill CampSupp
- RandallGlenn FleshlerSupp
- Hoyt VaughnJosh PaisSupp
- GeneMarc MaronSupp
Guest & voice
- Bruce WayneDante Pereira-OlsonGuest
- Alfred PennyworthDouglas HodgeGuest
- GaryLeigh GillGuest
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About this cast
Joker (2019) is a psychological thriller directed by Todd Phillips, exploring the origin of the iconic Batman villain. Joaquin Phoenix leads the film as Arthur Fleck, a struggling comedian who descends into madness, with standout supporting performances from Robert De Niro and Zazie Beetz.
FAQs
Who plays Arthur Fleck in Joker?
Joaquin Phoenix plays Arthur Fleck, who adopts the identity of the Joker, in Joker (2019).
Is Robert De Niro in Joker?
Yes, Robert De Niro plays talk show host Murray Franklin, a pivotal character in the film.
Who portrays Thomas Wayne in Joker?
Brett Cullen portrays Thomas Wayne, the wealthy businessman and father of Bruce Wayne.
Does Joker have any sequels?
Yes, a sequel titled ‘Joker: Folie à Deux’ is set for release in 2024, with Joaquin Phoenix reprising his role alongside Lady Gaga.
Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026