In truth, there is barely enough story here to make a film.

By the time the dramatic fireworks start popping off, each one feels earned.

The acting in this movie is really good.

Actress is magnificent and exudes a hypnotic screen presence in this affecting drama.

Frank Raymond (likeable Jon Hall), who's the grandson of the invisible man, uses his grandfather's invisibility formula so he can sneak into Germany as an undercover spy in order to thwart the Nazis and romance beautiful female double agent Maria Sorenson (the charming and elegant Ilona Massey).Although director Edward L. Marin relates the inane, but still enjoyable story at a snappy pace and maintains an amiable lighthearted tone, he alas overdoes the goofy slapstick humor, with the portrayal of the Nazis as bumbling buffoons coming across as both annoying and embarrassing. The special effects are strictly hit or miss: The invisibility stuff holds up pretty well while the painfully obvious miniature planes leave a lot to be desired. Fortunately, there's a trio of excellent villains who ensure that this movie remains watchable: Peter Lorre as oily Japanese weasel Baron Ikito, Cedric Hardwicke as the smoothly sinister Conrad Stauffer, and J. Edward Bromberg as the smarmy Karl Heiser. A pleasant diversion.

Frank Raymond is the grandson of the original Invisible Man Jack Griffin. He is happily and safely living in the United States. World War breaks out and the German agents are wanting the information for invisibility. Frank gets away from the German agents and becomes an invisible secret agent for the U.S. government. He ends up falling in-love with a beautiful double agent.This is a fun war-drama. It's comical in a way but makes for an exciting game of spy vs. spy, cat-n-mouse film. A few fun things happen when the Invisible Agent shows up.The opening scene is great - I wish they would have kept the rest of the film this eerie but I still enjoyed the fun of the movie.Worth watching if you like the older war films and/or the Universal Horror Invisible Man series.8/10

You know he's a bad guy when Peter Lorre sarcastically refers to an American sporting event as "an event of major national importance". And sure enough, he is. Both him and Sir Cedric Hardwicke, the actor who proved that both an Ancient Roman and Egyptian ruler came with imperious British accents. "You old wind bag", he old an Eygyptian underling as Pharaoh Seti in "The Ten Commandments", and perhaps, he should say the same thing to Lorre here, 'cause as German and Japanese agents, they obviously don't trust each other, only using their allies for their own use. That is all to find the secret formula for making people invisible that Jon Hall has, unwilling to sell it even to his own country. But Hall managed to escape the enemy, changes his mind of selling it to the allies, and makes it to Germany where he dive-bombs out of a crashing plane, strips naked and invisible, and locates another agent (the seductive Ilona Massey) who is using portly dumb Nazi J. Edward Bromberg to get information on intended American targets. Lots of comic visuals around, especially of Hall using cold cream (which exposes not only his handsome face but his teeth as well, in addition to clearing up any acne that an invisible man can get) to show Massey what a handsome invisible man he is. (The thought of seeing the missing insides from a cold-cream covered man is both spooky and comical). The result of this film is silly propaganda fun with elements of science fiction thrown in to the wartime world.

I wonder why this film has a 6.0 rating on IMDb. Is it possible people saw this bad film and actually thought it was good?! The world is a strange place, indeed.Now I started watching this film strongly predisposed to liking it. After all, I adore the Universal horror films of the 30s and 40s and the Invisible Man series is among the best. Plus, the idea of the Allies using the invisibility formula to infiltrate Nazi territory to do some spying is an inspired plot idea. Yet, almost miraculously, the Universal folks produced a very bad film.Most of the problem is that unlike most other horror films of the time, this one was very often played for laughs. Considering that the guy is supposed to get important information and get out, his sticking around to play tricks on the incredibly stupid Nazis was really dumb--and not in a good way! Plus, after a while, it was obvious that there was an invisible guy running about--talk about a great way to maintain your cover! Additionally, instead of the usual conniving and evil Nazis like you'd see in an American wartime propaganda film, here they are complete morons--almost like what you'd see in a Three Stooges film. If it were a Stooges film that would be great...but not in a horror film. Making it a straight drama would have improved the film tremendously.Additionally, it's obvious Universal simply didn't care when they made this film. Even for a B-movie, it is cheap and has a slapped together look. The models used for airplanes for the film were pathetically unrealistic and it was obvious they were bad models. Also, having Peter Lorre (whose heritage in reality was German) playing a Japanese man was ridiculous. In fact, it wasn't until later in the film that you even realized he was supposed to be Japanese! Now I understand that Lorre played the lead in the Mr. Moto films (where he was supposed to be Japanese), but here he didn't even try to look or sound Asian. Mantan Moreland would have been just as fitting an actor to play this role. Finally, throw in an unimportant and ridiculous love story that comes out of no where and you have the ingredients for a truly awful film.Exceptionally poor writing, indifferent direction and actors who couldn't have possibly made this material work and you have INVISIBLE AGENT in a nut shell. Don't say I didn't warn you! Fortunately, the next film in the series (THE INVISIBLE MAN'S REVENGE) is quite a bit better.