Movies Like The Alligator People

If you liked The Alligator People (1959), a science fiction and horror movie directed by Roy Del Ruth, here are 20 movies with a similar feel, based on TMDB's recommendations. Each one links to its cast, trailer and where it's streaming.

1
Marshmallow (2025)
★ 6/10Also horror and science fiction
At a secluded summer camp, timid and introverted 12-year-old Morgan is thrust into a waking nightmare when a once-fabled campfire tale becomes real. As a mysterious figure descends upon the camp, Morgan and his…
2
Invasion of the Body Snatchers (1956)
★ 7.5/10Also science fiction and horror
A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates.
3
This Island Earth (1955)
★ 6/10Also science fiction and horror
Aliens have landed and are hiding on Earth, but need Earth’s scientists to help them fight an inter-planetary war.
4
Circle (2015)
★ 6/10Also horror and science fiction
In a massive, mysterious chamber, fifty strangers awaken to find themselves trapped with no memory of how they got there. Organized in an inward-facing circle and unable to move, they quickly learn that every two…
5
Monster Summer (2024)
★ 6.3/10Also mystery and horror
When a mysterious force begins to disrupt their big summer fun, Noah and his friends team up with a retired police detective to embark on a monstrous adventure to save their island.
6
Creature from the Black Lagoon (1954)
★ 6.8/10Also horror and science fiction
When scientists exploring the Amazon River stumble on a “missing link” connecting humans and fish, they plan to capture it for later study. But the Creature has plans of his own, and has set his sights on the lead…
7
Alien Abduction (2014)
★ 5.9/10Also horror and science fiction
A vacationing family encounters an alien threat in this pulse-pounding thriller based on the real-life Brown Mountain Lights phenomenon in North Carolina.
8
Doctor Who: Planet of the Dead (2009)
★ 7.5/10Also science fiction and mystery
A meeting in a London bus with jewel thief Lady Christina takes a turn for the worse for the Doctor when the bus takes a detour to a desert-like planet, where the deadly Swarm awaits.
9
The Incredible Shrinking Man (1957)
★ 7.5/10Also science fiction and horror
A dangerous combination of radiation and insecticide causes the unfortunate Scott Carey to shrink, slowly but surely, until he is only a few inches tall. His home becomes a wilderness where he must survive everything…
10
Bride of Frankenstein (1935)
★ 7.5/10Also horror and science fiction
After recovering from injuries sustained in the mob attack upon himself and his creation, Dr. Henry Frankenstein falls under control of his former mentor, Dr. Pretorius, who insists the now-chastened doctor resume his…
11
Island of Lost Souls (1932)
★ 6.9/10Also science fiction and horror
An obsessed scientist conducts profane experiments in evolution, eventually establishing himself as the self-styled demigod to a race of mutated, half-human abominations.
12
Island of Terror (1966)
★ 5.9/10Also horror and science fiction
When a small island community becomes overrun with creeping, blobbish, tentacled monsters that liquefy and digest the bones from living creatures, the community struggles to fight back.
13
Scooby-Doo on Zombie Island (1998)
★ 7.7/10Also mystery and horror
After going their separate ways, Scooby-Doo, Shaggy, Velma, Daphne, and Fred reunite to investigate the ghost of Moonscar the pirate on a haunted bayou island, but it turns out the swashbuckler's spirit isn't the only…
14
Frankenstein Meets the Wolf Man (1943)
★ 6.2/10Also horror and science fiction
After being resurrected by grave robbers, Larry Talbot searches for Dr. Frankenstein in the hopes of being cured of his lycanthropy. The mad scientist may turn out to be dead, but his monster is just waiting to be found…
15
Carnival of Souls (1962)
★ 7/10Also horror and mystery
Mary Henry ends up the sole survivor of a fatal car accident through mysterious circumstances. Trying to put the incident behind her, she moves to Utah and takes a job as a church organist. But her fresh start is…
16
Cranston Academy: Monster Zone (2020)
★ 6/10Also science fiction and horror
An intelligent 15-year-old high school student is unexpectedly transferred to a boarding school where he opens a portal of monsters from another dimension.
17
The Tingler (1959)
★ 6.4/10Also horror and science fiction
A pathologist experiments with a deaf-mute woman who is unable to scream to prove that humans die of fright due to an organism he names The Tingler that lives within each person on the spinal cord and is suppressed…
18
Maniac (1963)
★ 6.2/10Also mystery and horror
When a stranger enters a quiet, country town and is seduced by a sensuous married woman he unwittingly finds himself at the centre of a storm of sexual guilt and murder.
19
Godzilla, King of the Monsters! (1956)
★ 6.5/10Also science fiction and horror
During an assignment, foreign correspondent Steve Martin spends a layover in Tokyo and is caught amid the rampage of an unstoppable prehistoric monster the Japanese call 'Godzilla'. The only hope for both Japan and the…
20
Gigantis, the Fire Monster (1959)
★ 6.4/10Also horror and science fiction
A prehistoric monster called Gigantis emerges alongside another creature named Angurus.