Glenn Langan (Lt. Col. Glenn Manning)
Cathy Downs (Carol Forrest)
William Hudson (Dr. Paul Lindstrom)
James Seay (Col. Hallock)
Larry Thor (Dr. Coulter)
Andrew Prine (Pvt. Owen Selous)
Chuck Roberson (Monk)
Diane Robin (Nurse)
Jon-Mikl Thor (Dr. Eric Coulter)
Bill Troy (Fulton)
Alan Hale, Jr. (Sgt. Beauregard Davis)
Frank Mitchell (Belmont)
Michael Pate (Thin Elk)
Jane Jenkins
Jesse Pearson (Cpl. Silas Geary)
Jim Backus (Gen. Willoughby)
Preston S. Foster (Gen. Bateman)
James Griffith (Hugo Zattig)
Yvonne Craig (Ora)
Joan Blondell (Jenny)
Whit Bissell (Capt. Queeg)
Melvyn Douglas (Col. Claude Brackenby)
Jack Kosslyn (Lt. in Briefing Room)
Jean Moorhead (Girl in Bath)
Jimmy Cross (Sgt. Reception Desk)
Hank Patterson (Henry)
Frank Jenks (Delivery Man)
Scott Peters (Sgt. Lee Carter)
Myron Cook (Capt. Thomas)
Michael Harris (Police Lt. Keller)
Dick Nelson (Sgt. Hanson)
Edmund Cobb (Dr. McDermott)
Paul Hahn (Attendant)
June Jocelyn (Nurse)
Russ Bender (Richard Kingman)
Lyn Osborn (Sgt. Taylor)
Diana Darrin (Secretary)
William Hughes (Control Officer)