I got lured into this picture with the promise of John Carradine who is killed off in the first minute of the film, only to return in one scene as a space zombie. The rest of the cast tries their best but the pseudo science and techno-babble they are forced to utter is a hard sell indeed. Even the best of actors would have a hard time making this crap seem convincing.
For the love of science fiction and zombies skip this one altogether. Everyone tries their best to make this film work, including director Edward L. Cahn [Zombies of Mora Tau], but all their efforts fall short of the mark. Invisible Invaders may have worked in 1959, but it's utterly ridiculous in 2013.
For more info check out the film's entry in IMDB.