James Badge Dale
Robert Leckie

Jon Seda
John Basilone

Joseph Mazzello
Eugene Sledge

Ashton Holmes
PFC Sidney Phillips

Jacob Pitts
PFC Bill 'Hoosier' Smith

Rami Malek
PFC Merriell 'Snafu' Shelton

William Sadler
Lt Col. Lewis 'Chesty' Puller

Jon Bernthal
Sgt. Manuel 'Manny' Rodriguez

Matt Craven
Dr. Grant

Noel Fisher
Pvt. Hamm

Caroline Dhavernas
Vera Keller

Brendan Fletcher
Bill Leyden

Isabel Lucas
Gwen

Annie Parisse
Lena Mae Riggi-Basilone

Claire van der Boom
Stella

Keith Nobbs
PFC Wilbur 'Runner' Conley

Tom Hanks
Narrator (voice)

Nicholas Cooper
Army Officer

Leon Ford
1st Lt. Edward 'Hillbilly' Jones

Scott Gibson
Capt. Andrew 'Ack Ack' Haldane

Martin McCann
Cpl. R.V. Burgin, Sgt. R.V. Burgin

Nathin Art Butler
Private Young

Toby Leonard Moore
2nd Lt. Stone, Sgt. Stone