Conquest of Space is a 1955 American science fiction film produced by George Pal, directed by Byron Haskin, and stars Walter Brooke, Eric Fleming, and Mickey Shaughnessy. br br The film's storyline concerns the first interplanetary flight to the planet Mars, carrying a crew of five, and launched from Earth orbit near "The Wheel", mankind's first space station. On their long journey to the Red Planet, they encounter various dangers, both from within and without, that nearly destroy the mission. br br Cast; br Walter Brooke as General Samuel T. Merritt br Eric Fleming as Captain Barney Merritt br Mickey Shaughnessy as Sgt. Mahoney br Phil Foster as Sgt. Jackie Siegle br William Redfield as Roy Cooper br William Hopper as Dr. George Fenton br Benson Fong as Sgt. Imoto br Ross Martin as Sgt. Andre Fodor br Vito Scotti as Sanella br John Dennis as Donkersgoed br Michael Fox as Elsbach br Joan Shawlee as Rosie br Iphigenie Castiglioni as Mrs.