(in credits order)
- Duc Nha Hoang(as Hoang Duc Nha)
- Lien-Hang Nguyen(as Lien-Hang T. Nguyen)
- Tong Minh Huynh(as Dr. Tong Minh Huynh)
- Gregory Daddis(as Col. Gregory A. Daddis)
- William G. Eckhardt(as Col. William G. Eckhardt)
Rest of cast listed alphabetically
- Creighton Williams Abrams(archive footage) (as Creighton Abrams)
- William Calley(archive footage) (as Lt. William Calley)
- George Cox(archive footage) (as Sgt. George Cox)
- Walter Cronkite(archive footage)
- Seymour Hersh(archive footage)
- George Jacobson(archive footage) (as Col. George Jacobson)
- Lady Bird Johnson(archive footage) (as Claudia 'Lady Bird' Johnson)
- Robert F. Kennedy(archive footage) (voice)
- Martin Luther King Jr.(archive footage) (as Martin Luther King)
- John Laurence(archive footage) (as John 'Jack' Laurence)
- Robert McNamara(archive footage) (voice)
- Ernest Medina(archive footage) (as Capt. Ernest Medina)
- Cao Ky Nguyen(archive footage)
- Richard Nixon(archive footage)
- Frank Reynolds(archive footage)
- Ron Ridenhour(archive footage)
- Jay Roberts(archive footage)
- Richard Salant(archive footage) (as Richard S. Salant)
- Hugh Thompson(archive footage)
- Nguyen Van Thieu(archive footage) (as Ltg. Nguyen Van Thieu)
- William C. Westmoreland(archive footage) (as Gen. William Westmoreland)
