| Complete credited cast: | |||
| James Whitmore | ... | Sgt. Ben Peterson | |
| Edmund Gwenn | ... | Dr. Harold Medford | |
| Joan Weldon | ... | Dr. Patricia Medford | |
| James Arness | ... | Robert Graham | |
| Onslow Stevens | ... | Brig. Gen. Robert O'Brien | |
| Sean McClory | ... | Maj. Kibbee | |
| Christian Drake | ... | Trooper Ed Blackburn (as Chris Drake) | |
| Sandy Descher | ... | The Ellinson Girl | |
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Mary Alan Hokanson | ... | Mrs. Lodge (as Mary Ann Hokanson) |
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Don Shelton | ... | Trooper Capt. Fred Edwards |
| Fess Parker | ... | Alan Crotty | |
| Olin Howland | ... | Jensen (as Olin Howlin) | |
In the New Mexico desert, Police Sgt. Ben Peterson and his partner find a child wandering in the desert and sooner they discover that giant ants are attacking the locals. FBI agent Robert Graham teams up with Ben and with the support of Dr. Harold Medford and his daughter Dr. Patricia 'Pat' Medford, they destroy the colony of ants in the middle of the desert. Dr. Harold Medford explains that the atomic testing in 1945 developed the dangerous mutant ants. But they also discover that two queen ants have flown away to Los Angeles and they are starting a huge colony in the underground of the city. When a mother reports that her two children are missing, the team and the army have a lead to follow. Will they arrive in time to save the children and destroy the colony? Written by Claudio Carvalho, Rio de Janeiro, Brazil
Them was the best giant bug movie. It was about giant ants and started a horde of pathetic clones that followed it, but none have even come close to matching this movie's effectiveness.
Atomic testing in New Mexico that went on in 1945 creates a horde of giant ants. It is up to a group of scientists, a police officer, and the military to stop these creatures from spreading throughout the USA and killing off the human race.
This movie is not only a horror movie, but it also makes a point about the dangers of atomic testing. Much like Japan's Godzilla, Them finds nothing good in radiation testing or atomic bombs. There is even a monologue at the end of the movie which explains that things have changed now that we have entered the Atomic age.
James Whitmore, James Arness, Joan Weldon, and Edmund Gwenn give good performances as the heroes who are out to save mankind, along with the U.S. military police. The pacing was rather good as well, slowing down when things need to be explained, and then picking up when the giant ants are on screen.
Though the special effects seem cheesy by todays standards, I thought they were rather effective in this movie and memorable for 1954. This movie definitely looks best in black and white because it adds a haunting feeling to the desolation of the desert where the creatures are first found, and it also makes other scenes in the movie seem darker and sinister. Definitely a thumbs up in my opinion.