Richard Dix as Lt. Danny Darrick

Lucille Ball as Joan Grant

Chester Morris as Lt. Jim Malone

Steffi Duna as Teresa

John Eldredge as John Henderson / El Vengador

Paul Harvey as Col. Hill

Horace McMahon as Sgt. Monk O'Hara

Dick Hogan as Cpl. Ted Haines

Kirby Grant as Lt. Bob Hobbes

Ann Shoemaker as Mrs. Hill

Nestor Paiva as Pedro Fernandez

Abner Biberman as Gomez

Selmer Jackson as Medical Officer

Ethan Laidlaw as Barnes

John Sheehan as Airplane Seller