Robert Leckie
John Basilone
Eugene Sledge
PFC Sidney Phillips
PFC Bill 'Hoosier' Smith
PFC Merriell 'Snafu' Shelton
Lt Col. Lewis 'Chesty' Puller
Sgt. Manuel 'Manny' Rodriguez
Dr. Grant
Pvt. Hamm
Vera Keller
Bill Leyden
Gwen
Lena Mae Riggi-Basilone
Stella
PFC Wilbur 'Runner' Conley
Narrator (voice)
Army Officer
1st Lt. Edward 'Hillbilly' Jones
Capt. Andrew 'Ack Ack' Haldane
Cpl. R.V. Burgin, Sgt. R.V. Burgin
Private Young
2nd Lt. Stone, Sgt. Stone