Jerry Trimble as John Merill

George Takei as Uncle Coronado

Ted Markland as Sacker

Laura Albert as Helen Ferris

Vic Diaz as Warden Acosta

Romy Diaz as Alvarez

Roland Dantes as Captain Vargas

Berting Labra as JoJo (as Bert Labra)

Ramon D'Salva as Fuentes

Zernan Manahan as Glasses

Nick Nicholson as Greasemonkey

Steve Rogers as Porky

Jim Moss as Lude

Archie Adamos as Lopez

Ronald Asinas as Ocho (as Ron Asinas)

Jett Sahara as Chino (as Jet Sahara)

Dardo De Oro as Pinchon

Greg Rocero as Juan

Ray Ventura as Father Zamora

Joseph Zucchero as Curt Erhardt

Coco Trinidad as Doctor

Cris Aguilar as Chavez

Eddie Gaerlan as Captain

Henry Strzalkowski as Investigator (uncredited)

John Crank as

Ned Hourani as (uncredited)