- Tom Berenger
- Sgt./Lt./Capt. John Riley
- Joaquim de Almeida
- Cortina
- Daniela Romo
- Marta
- Mark Moses
- Col. Benton Lacy
- Stuart Graham
- Cpl. Kenneally
- James Gammon
- Gen. Zachary Taylor
- Stephen Tobolowsky
- Capt. Gaine
- Carlos Carrasco
- Dominguez
- Patrick Bergin
- Gen. Winfield Scott
- Don Wycherley
- Brian Athlone
- Jorge Bosso
- Col. Maximo Nexor
- Guy De Saint Cyr
- Lasher
- Luke Hayden
- Seamus McDougherty
- Brett Hool
- Army Recruiter
- Jason Hool
- Peter O'Neil, San Patricios Cannoneer
- Perla De La Rosa
- Juno
- Steve Leone
- John Daly
- Luis Lorenzo
- Padre Varga
- Wolf Muser
- Cpl. Schultz
- Rodolfo de Anda
- Gen. Ampudia
- Roger Cudney
- Col. Harney
- Gregg Fitzgerald
- Paddy Noonan
- Vanessa Bauche
- Flor
- Fernando Elizondo
- 2nd Guerilla
- Lance Hool
- Director, Producer
- Milton S. Gelman
- Writer
- Conrad Hool
- Producer
- William J. Macdonald
- Producer
- Paul J. Newman
- Co-Producer
- Arturo Brito
- Associate Producer
- Jaime Comas Gil
- Associate Producer
- Julio Fernández
- Associate Producer
- Joseph Brad Kluge
- Associate Producer
- Kristine Harlan
- Associate Producer
- João Fernandes
- Cinematographer
- Mark Conte
- Film Editing
- Ernest Troost
- Original Music
- Peter Wooley
- Production Design
- Hector Romero
- Art Director
- Enrique Estévez
- Set Decoration
- Carol H. Beule
- Costume Design
- Matthew Jacobsen
- Costume Design
- Mary Jo Slater
- Casting
- Bruce Newberg
- Casting
