James Badge Dale, Jon Seda, and Joseph Mazzello star as real-life US Marines Robert Leckie, John Basilone, and Eugene Sledge in HBO’s Second World War epic *The Pacific*.
Main cast
- Robert LeckieJames Badge Dale1 (miniseries)Main
- John BasiloneJon Seda1Main
- Eugene SledgeJoseph Mazzello1Main
Supporting cast
- Sgt. John ‘J.P.’ MorganJacob Pitts1Supp
- PFC Bill ‘Hoosier’ SmithJon Bernthal1Supp
- Capt. Andrew ‘Ack Ack’ HaldaneScott Gibson1Supp
- PFC Wilbur ‘Runner’ ConleyDwight Braswell1Supp
- PFC Ronnie GibsonMartin McCann1Supp
- PFC Bud ‘Runner’ ConleyDwight Braswell1Supp
- Sgt. ‘Manila’ John Basilone (historical)Jon Seda1Supp
- Lt. Col. Lewis ‘Chesty’ PullerWilliam Sadler1Supp
- Lena Basilone (née Riggi)Annie Parisse1Supp
Guest & voice
- Sidney PhillipsAshton Holmes1Guest
- Cpt. JamesonRami Malek1Guest
- PFC Harry ‘The Horse’ BenderBrendan Fletcher1Guest
- PFC ‘Doc’ O’LearyMatt Craven1Guest
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About this cast
Produced by Tom Hanks, Steven Spielberg, and Gary Goetzman, *The Pacific* is a 10-part miniseries that follows three US Marines – Robert Leckie, John Basilone, and Eugene Sledge – through the brutal Pacific theatre of World War II. The series is based on memoirs by Sledge and Leckie, as well as Helmet for My Pillow by Leckie and With the Old Breed by Sledge.
FAQs
Who plays John Basilone in *The Pacific*?
Jon Seda plays the heroic Marine Gunnery Sergeant John Basilone, who was awarded the Medal of Honor for his actions at Guadalcanal.
Who plays Eugene Sledge in *The Pacific*?
Joseph Mazzello plays Eugene ‘Sledgehammer’ Sledge, a Marine mortarman whose memoir *With the Old Breed* heavily influenced the series.
Is *The Pacific* a true story?
Yes, it is based on the real memoirs and experiences of US Marines Robert Leckie, Eugene Sledge, and the story of John Basilone. Events and characters are dramatised but rooted in historical fact.
How many episodes are in *The Pacific*?
The miniseries consists of 10 episodes originally broadcast on HBO in 2010.
Who narrates *The Pacific*?
Tom Hanks narrates the opening and closing of episodes, providing historical context.
Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026