Ameaça Espacial
Voltar
Lee Van CleefDr. Tom Anderson
Beverly GarlandClaire Anderson
Peter GravesDr. Paul Nelson
Sally FraserJoan Nelson
Russ BenderGeneral James Pattick
Jonathan HazePvt. Miguel Ortiz
Dick MillerSgt. Neil- Paul HarborFloyd Mason
Charles B. GriffithDr. Pete Shelton
Karen KadlerEllen Peters
Taggart CaseySheriff N.J. Shallert
Thomas E. JacksonGeorge Haskell- Marshall BradfordU.S. Secretary Platt
David McMahonGen. Carpenter- Paul BlaisdellThe Monster (sem créditos)