Margot Robbie plays Harley Quinn, Idris Elba plays Bloodsport, and John Cena plays Peacemaker in The Suicide Squad.
Main cast
- Harley QuinnMargot RobbieSeasons FilmMain
- BloodsportIdris ElbaSeasons FilmMain
- PeacemakerJohn CenaSeasons FilmMain
- Amanda WallerViola DavisSeasons FilmMain
- Colonel Rick FlagJoel KinnamanSeasons FilmMain
- Ratcatcher 2Daniela MelchiorSeasons FilmMain
Supporting cast
- SavantMichael RookerSeasons FilmSupp
- Captain BoomerangJai CourtneySeasons FilmSupp
- Polka-Dot ManDavid DastmalchianSeasons FilmSupp
- Weasel / Calendar ManSean GunnSeasons FilmSupp
- T.D.K.Nathan FillionSeasons FilmSupp
- JavelinFlula BorgSeasons FilmSupp
- MongalMayling NgSeasons FilmSupp
- BlackguardPete DavidsonSeasons FilmSupp
- John Economos / On-Set King SharkSteve AgeeSeasons FilmSupp
- Emilia HarcourtJennifer HollandSeasons FilmSupp
- Flo CrawleyTinashe KajeseSeasons FilmSupp
Guest & voice
- Doctor FitzgibbonJohn OstranderSeasons FilmGuest
- Sliced Dome SoldadoFernando MartinezSeasons FilmGuest
- King SharkSylvester StalloneSeasons FilmVoice
- Sebastian (Rat voice)Dee Bradley BakerSeasons FilmVoice
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About this cast
The Suicide Squad (2021) is a standalone DC superhero film directed by James Gunn. The ensemble cast includes Margot Robbie, Idris Elba, John Cena, Viola Davis, Joel Kinnaman, Daniela Melchior, and Sylvester Stallone as King Shark.
Cast FAQs
Who plays Harley Quinn in The Suicide Squad?
Margot Robbie plays Harley Quinn.
Who plays Weasel in The Suicide Squad?
Sean Gunn plays Weasel in the film.
Who plays King Shark in The Suicide Squad?
Sylvester Stallone voices King Shark.
How many cast members are in The Suicide Squad?
The film features a total of 21 credited cast members.
Who plays Bloodsport in The Suicide Squad?
Idris Elba plays Bloodsport.
Sources: IMDb · IMDb · TV Guide · Rotten Tomatoes · Wikipedia · Updated June 2026
Related cast guide: The Monster Squad