Aldo Ray as Sam Croft

Cliff Robertson as Robert Hearn

Raymond Massey as General Cummings

Lili St. Cyr as Willa Mae

Barbara Nichols as Mildred Croft

William Campbell as Brown

Richard Jaeckel as Gallagher

James Best as Rhidges

Joey Bishop as Roth

Jerry Paris as Goldstein

Robert Gist as Red

L.Q. Jones as Woodrow Wilson

Max Showalter as Colonel Dalleson

John Beradino as Captain Mantelli

Edward McNally as Cohn

Jered Barclay as Corporal (uncredited)

Liz Renay as B-Girl (uncredited)

Taffy O'Neil as Stripper (uncredited)

Grace Lee Whitney as Girl in Dream Sequence