A gargantuan tusked turtle-like monster, Gamera has had different origins depending on which era he is involved in. In the original Showa Era, he has some absent connection to Atlantis, but not much in the way of details is presented; he is simply one of many monsters who roams the world and is frequently lured to do battle with other monsters. In the Heisei Era, he is a bio-engineered Super Soldier created by Atlantis after previous misuse of the same technology produced the horrors known as Gyaos, given life for the purpose of slaying Gyaos and surviving through the eons to ensure they are exterminated.
- Alternate Company Equivalent: Odd as it may sound, Gamera is to arch-rival Godzilla as Spider-Man is to Superman; yes, he's powerful, but not all powerful, and his enemies are usually stronger. This forces him to fight with smarts as much as claws, and to learn from his mistakes (Usually this comes after he's on the losing end of a brutal ass-beating by the Monster of the Week).
- His Heisei counterpart on the other hand is actually capable of defeating monster with just his powers and can evolve to grow in power, putting him more in line with Godzilla's power.
- Atlantis: Gamera's origin in all continuities, though it's not gone into much detail in the Showa Series.
- Batman Can Breathe in Space: In the Showa era, he could spin through space without much harm coming to himself.
- The Heisei era version of him can too, though it's only shown in one shot alongside the Super Gyaos in the first movie.
- Big Bad: Was actually the main villain of the first movie, as the sole kaiju rampaging.
- Blade Below the Shoulder: Has spikes on his elbows but they aren't used much.
- Breath Weapon: In the Showa era, he pretty much has flamethrower breath. In the Heisei era, he shoots fireballs.
- Combined Energy Attack / Kamehame Hadouken: His Mana beam from the Heisei era.
- Everything's Better with Spinning: His mode of transportation.
- Expy: The Heisei's incarnation may possibly (perhaps unintentionally) be one of Godzilla (1994) before it was scrapped and replaced with the much disliked 1998 result. Both the scrapped 1994 Godzilla and Heisei Gamera were created by ancient civilisations to combat a greater menace.
- Friend to All Children: The Trope Namer
- Genius Bruiser: Gamera is much more intelligent than most kaiju are depicted, being more of a Guile Hero than simply a destructive force of nature like Godzilla.
- Glass Cannon: Discounting the original film (Then at his most obviously indebted to Godzilla, he's nigh-impervious), Gamera is amongst the most fragile of Kaiju; even light arms fire does him some damage (Admittedly not much, but considering Godzilla shrugs off an A-Bomb...). He does have a healing factor, but it's quite slow.
- His Heisei counterpart, however, averts this completely, by the time of the third film, it takes Irys attacks to harm him, all else he no-sells it it
- Good Is Not Nice: In the final film in the Heisei trilogy. He's so determined to destroy the Gyaos, he kills and injures 15,000 - 20,000 citizens in the Shibuya ward.
- Guile Hero: Gamera is actually weaker than any of his kaiju opponents, and usually gets knocked out in his first confrontation with them. However he's also smarter, and once he gets his Heroic Second Wind and starts using his head, is able to turn the tide and defeat them.
- The Heisei era averts this on the other hand, aside from the Mother Legion, all of Gamera's opponents are at best equal and at worst, Mooks.
- Healing Factor: Has one, but much slower than most.
- Heal It with Fire: Can absorb fire in order to repair his injuries, and in his first film, it was stated that nuclear weapons would only empower him.
- He even generates a fire hand to destroy Irys in the finale of the Heisei trilogy.
- Heal It with Fire: Can absorb fire in order to repair his injuries, and in his first film, it was stated that nuclear weapons would only empower him.
- Heroic Sacrifice: The original Gamera in Gamera the Brave blew himself up to finish off a swarm of Gyaos.
- Posthumous Character: In Gamera the Brave he's dead by the end of the prologue, but his son carries on his legacy.
- Sea Monster: Dwells in the sea a lot, and is based on a mutated turtle.
- Taking You with Me: His "Fireball Ejection Suicide" attack. He only used it in Gamera the Brave after the Gyaos swarm had mutilated his jaw, thus leaving him unable to use his fireballs. It is powerful enough to vaporize an entire island but completely kills Gamera in the process.
- Turtle Power: Giant, heroic, mana-powered turtle!
- Took a Level in Badass: The Heisei Era Gamera to the Showa one. To put it simple: Gyaos in Showa gave Gamera a hard time everytime they fought, in the end of the Heisei era, regular Gyaos and it's evolved forms can't even scratch Gamera, with their beams bouncing off his hide effortlessly.
- Toothy Bird: A turtle kaiju with large tusks and sharp teeth.
- Underdogs Never Lose: Unlike Implacable Juggernaut Godzilla, Gamera is not all-powerful, and is in fact quite vulnerable for a Kaiju — crucially, moreso than most of his Rogues Gallery. This forces him to fight with his wits.
- The Heisei version averts this for the most part, with Legion being the sole exception.
- Badass Adorable: Fights against Zedus, a kaiju the size of Godzilla, even when the cards are stacked against him dueto not being full grown nor having recovered his full power. And wins.
- Breath Weapon: Has only flamethrower breathe at first but upon eating the red rocks left behind by his predecessor, he is able to use a fireball as a finisher against Zedus.
- Everything's Better with Spinning: Can do this when young but is incapable in monster form until eating the red rocks.
- Heroic Sacrifice: Toru persuades him to not pull this in order to defeat Zedus, unlike his father/predecessor.
- Plot-Relevant Age-Up: In the space of a week, Toto grows from a cute hand-sized turtle to a cute house-sized turtle. It's likely that the red rocks scattered around Japan had a hand in this.
- Ridiculously Cute Critter: Seriously. Just look at him as a baby.
- Stock Sound Effects: In stark contrast with his father's screech, his entire vocal library is made of generic monster roars and growls, most of which come from King Kong (1976).
- Turtle Power
A massive, crocodile/chameleon-like kaiju of little intelligence but considerable destructive power, the first enemy monster battled by Gamera in the Showa era.
- Adaptational Badass: The manga-only Heisei version of Barugon is able to create massive ice storms and icebergs with his freezing powers.
- Attention Deficit... Ooh, Shiny!: A diamond was used to lure Barugon into a lake but he just snapped it up with his tongue instead.
- Awesome, but Impractical: His rainbow attack as he learned the hard way.
- Everything's Better with Rainbows: Can shoot a rainbow beam out of his back for long distance attacks!
- Kill It with Ice: Can shoot ice out of its Overly Long Tongue. Even froze Gamera in place for some of the movie, his ice is so cold it can shatter tanks and planes instantly
- Kill It with Water: He's drowned by Gamera
- Meaningful Name
- Never Smile at a Crocodile: Bears a strong resemblance to a crocodile, albeit with some chameleon-like features such as the horns and tongue.
- Our Dragons Are Different: Probably the closest thing the series has to a dragon, and a really weird one.
- Overly Long Tongue
- Super Drowning Skills: Cannot swim and the military and Gamera uses this to their advantage
Most iconic of Gamera's foes, Gyaos are blood-sucking pteranodon-like kaiju with laser beams. They first appeared in the third Gamera film of the Showa era and were later revealed to have spacefaring relatives. In the Heisei era, they were presented as the arc-villains of the trilogy, having been accidentally created by the people of Atlantis and then gone amuck, necessitating the creation of Gamera to destroy them.
- Arch-Enemy: To Gamera. At least in the Heisei series. Also could be considered his arch-nemesis as a whole by virtue of simply being the only other kaiju to appear in every continuity.
- Bat Out of Hell: The Showa era incarnation is a sort of giant bat. The Heisei era are referred to being giant birds, despite still retaining bat-like features.
- Breakout Villain: Appeared in more than one Showa film, which led to their revival in the Heisei era and further cemented their iconic image. They even cameo in Gamera The Brave!
- Giant Flyer: They are giant bat/pterosaur-like creatures.
- Greater-Scope Villain: Of Gamera the Brave as it's their remains after Gamera killed them all, that mutated the creature Zedus was into a giant man-eating monster.
- Healing Factor: The Showa one was able to regenerate, and regrew his severed foot.
- I'm a Humanitarian: In the Showa era, Gyaos ate humans and livestock for their blood. In the Heisei era, he eats them because his old food source, pollution, was depleted when Atlantis thrived.
- Make Me Wanna Shout: Their cuttings beams are actually super sonic screams.
- Mook: By the end of the Heisei era they are pretty much this to Gamera, to the point that their strongest forms can only hope to Zerg Rush Gamera, and even that proves ineffective.
- Ninja Pirate Zombie Robot: A giant vampire-pterodactyl.
- One-Gender Race: In the Heisei series, reproducing asexually.
- Small Role, Big Impact: In Gamera the Brave they only appear in the opening scene, but it's them who force the original Gamera to perform a Heroic Sacrifice, and their remains are eaten by a sea creature that ends up mutating into the film's Big Bad, Zedus.
- Took a Level in Badass: Became the most frequent monster in the Heisei series and obtained two new forms, they also lost their weakness to sunlight.
- Vampire Bites Suck: In the Showa era, the bites suck since you could be killed by a single chomp.
- Weakened by the Light: The Showa version doesn't like the sun, and in fact would die if exposed to the ultraviolet rays for too long. The Heisei ones also preferred night at first but after growing protective eye plates they could fly during the day without much hassle.
- Apocalypse How: Almost a Class 3. Makes you wonder why they haven't gone after earth next.
- Cruel and Unusual Death: How Guiron dismembers the Space Gyaos. Its head even lives a few seconds longer beyond decapitation!
- Giant Flyer
- I'm a Humanitarian: To the Terrans and probably other races and animals.
- Ninja Pirate Zombie Robot: Shiny Silver Gyaos from space that are immune to sunlight and attack planets.
- Palette Swap: Basically the Gamera vs. Gyaos suit painted silver. But it's so shiny!
- Recycled INSPACE: Gyaos, but shiny silver and IN SPACE.
- Real Life Writes the Plot: Originally meant to be a flying squirrel kaiju called Monga, but budget constraints caused Monga to be scrapped and replaced with a repainted Gyaos.
- The Swarm: Attacked Terra offscreen and wiped out most of the inhabitants, the last two protected by Guiron.
- Weakened by the Light: Averted. The Space Gyaos attack the planet Terra during the day without any apparent harm. Can Presumably fly through space surviving starlight.
- The Worf Effect: It took Gamera a whole movie to get the hang of killing Gyaos. The Space Gyaos has no sunlight weakness and is carved up by Guiron in a few minutes.
- Alien Invasion: Want to colonize Earth for unknown reasons. Talks about how it's similar to their planet hint their world may be dying.
- Combat Tentacles: It fights Gamera with six of them.
- Impaled with Extreme Prejudice: Can combine his three head tentacles into a razor sharp weapon to skewer opponents with.
- Meets this fate itself in one of the American comics when Gamera throws it onto the Eiffel Tower.
- Octopoid Aliens: Like the caption said: Squids FROM SPACE!
- Sea Monster: Can swim underwater, but from another planet.
- The Swarm: Was originally just the leader of an invasion force with underlings using human disguises. Then those underlings combined with Viras for a Kaiju battle!
- Angry Guard Dog: Is pretty dang determined to butcher any intruders.
- Attack Reflector: Reflected the Space Gyaos's beam back and cut off its foot!
- BFS: Has a Big Effing Knife for a head and he isn't afraid to use it!
- The Blade Always Lands Pointy End In: How he meets his end.
- Brainwashed: How he's persuaded to do his guarding duties by the brain eating Human Aliens.
- Evil Laugh: When slicing up Space Gyaos.
- Four Legs Good, Two Legs Better: Normally walks on all fours but can stand on his hind feet.
- Fuuma Shuriken: Has a pair of shurikens in its head which can be launched and guided by psychokinesis.
- Half the Man He Used to Be: After having a missile explode in his head.
- It Can Think: Despite his brutish appearance, he's quite crafty. He set up Space Gyaos so he could render it defenseless (by cutting off a wing, no less) and chop it to pieces, and used his shuriken to prevent Gamera from flying.
- Meaningful Name: Named after the guillotine.
- Beware My Stinger Tail: Has a deadly stinger hidden in her tail she can use to implant her offspring in other monsters.
- Disintegrator Ray: Her heat ray vaporizes flesh and entire city blocks. Doesn't have the same affect on Gamera, but still damaging nonetheless.
- Female Monster Surprise: Her gender is discovered when she implanted an egg in Gamera's lung. And it hatched.
- Face Full of Alien Wing-Wong: Implanted an egg into Gamera's lung, stunning him. It hatched in his lung and would have probably made its insides a meal if the heroes hadn't killed it.
- Hell Is That Noise: In-Universe, her main weakness is an idol that makes a sound that's able to both weaken her and cause severe illness in humans. White noise is also discovered to be this to her. Her Disintegrator Ray also operates on this.
- Monster Is a Mommy: And she will use the nearest monster as the incubator for that egg. Gamera is free.
- Names to Run Away from Really Fast: In-Universe, her name is described as a Mu word meaning Devil.
- Sealed Evil in a Can: Was sealed away under the earth by the Devil Whistle thanks to it making a special sound which weakens her, keeping her in suspended animation.
- Superpower Lottery: Can shoot quills that keep Gamera in place and take down jets, a massively destructive heat ray, the ability to suck opponents toward her, and impregnate opponents with her stinger tail.
- Absurdly Sharp Blade: His fins act like this and are his preferential weapon.
- Alien Invasion: Wanted to enslave the humans as cattle for his race.
- Brainwash: Mind controlled a captured woman to be her agent and even gave her some brainwashing powers as well.
- Evil Is Hammy: Moreso in the English dub of the movie. Have a listen !
- Everything Is Even Worse With Sharks: An alien with the resemblence of a Goblin Shark!
- I'm a Humanitarian: His race eats humans. They want a fresh supply of them, so...
- The Paralyzer: The beam from the jewel-like organ above his beak can freeze an opponent in time.
- Sea Monster: Like Viras, he is FROM SPACE!
- Arch-Enemy: Would have been this to Gamera, as Word of God says she was intended to be the "Ghidorah" of the Gamera series. That role ended up going to Gyaos (and to a lesser extent, Iris) instead.
- Breath Weapon: She could have possibly breathed fire or let out poisonous smoke.
- Monster Is a Mommy: Upon dying, two babies wriggled out and Gamera rescued them from the military, since he's the friend of monster children as well!
- Multiple Head Case: One plan for her was to have two heads.
- Poisonous Person: One of her proposed powers was unleash a poisonous smog.
- Reptiles Are Abhorrent
- Alien Invasion: Though the conflict comes from the fact the conditions perfect for the Legion are negligible to the humans and the human technology interferes with Legion communication.
- Authority Equals Asskicking: The Queen Legion is the biggest, strongest, and smartest of the swarm.
- Bee People: Her soldiers are this. They even seem to reside in a Honeycomb-like part of her body.
- Giant Flyer: Played straight with the soldiers, but the queen gets her wings destroyed soon after her appearance and relies on burrowing thereafter.
- Hive Queen: The Queen Legion is the brains of the smaller ones.
- I Am Legion: One of the characters quotes from the bible passage and that's the creatures' name from then on.
- Not So Stoic: Upon her horns being ripped off, she goes ballistic and starts using red energy whips!
- Red Eyes, Take Warning: Upon her horns being ripped off which reveals she's Not So Stoic.
- Super Toughness: By Heisei Gamera standards. Direct hits from missiles and other conventional weapons manage to blow off some of her small shield emitting legs, but fail to do any serious damage otherwise, compared to other kaiju that take considerably more damage from the same thing. It also takes Gamera's strongest attack powered by the entirety of the Earth to put her down.
- Tunnel King: Her ability after being dewinged.
- Villainous Breakdown: See Not So Stoic.
- Ambiguously Evil: Multiple possible explanations are given for his existence, some of which imply he was actually not inherently evil and was corrupted by Ayana's hatred. While he's undoubtedly a dangerous monster and the film's main villain, it's unclear if he does the things he does out of a malicious nature or simply because he thinks its what he thinks Ayana wants him to do.
- Arch-Enemy: It's implied throughout the film that Iris and Gamera are natural enemies. At one point they are compared to the Chinese gods of the South and the North, who were rivals; and two explanations for Iris' past say that he was either created to destroy Gamera or is a mutation of the Gyaos, whom Gamera was created to destroy.
- Combat Tentacles: His shoot lasers and can be used to make him fly.
- Evil Counterpart: To Gamera. They are both giant monsters created by the Atlanteans (possibly in Iris' case) that end up forming psychic links with human girls through the use of mystical stones.
- Giant Flyer: Flies using plasma energy, uses wing-like membranes between tentacles to increase speed.
- Manipulative Bastard: Manipulates Ayana's hatred for Gamera for a power up...maybe. The film is kinda ambiguous whether or not he manipulated her or her hatred and anger corrupted him.
- Meaningful Name: His name in the kanji representation means "Evil God" or "False God."
- Multiple-Choice Past: Is he an evil spirit? A monster created to stop Gamera that was corrupted by Ayana's hatred? Or a mutated Gyaos? The film never really gives a clear answer.
- Sealed Evil in a Can: If he was inherently evil. Was confined to the Moribe shrine where a turtle-like rock sealed it. A sumo wrestler couldn't pick it up. Ayana could.
- Ultimate Life Form: One possible explanation for his existence is that he's the ultimate evolution of the Gyaos.
- Villainous Breakdown: When Gamera rips Ayana out of his chest, Iris pins him to a wall by his hand and is about to fry him with his own fire balls.
- All There in the Manual: Only in supplementary material is Zedus' origin story told (he was an ordinary lizard mutated after feeding on Gyaos remains).
- Big Bad: Of Gamera the Brave
- Everything's Better with Dinosaurs: A sea monster that resembles a theropod for some reason. May have to do with his biology being royally messed up by eating Gyaos' remains.
- Expy: To the Gyaos. Which makes sense as he is a creature mutated by their remains.
- I'm a Humanitarian: His recent preferred food source that kicks off the conflict. Given that he's for all purposes a Gyaos-mutant (With the Gyaos being well-known man-eaters) this makes sense.
- Knight of Cerebus: Gamera the Brave starts off light-hearted aside from a bunch of scenes, but the moment Zedus enters the story, the stakes are raised immediately. To put it simple, his first scene has a very bloody human death.
- Lighter and Softer: Downplayed. But he is still a far more grounded and less creepy monster compared to the other Heisei kaiju.
- Nothing Is Scarier: We don't get to see him in his first scene, where he eats a human stranded at sea. All that we see is the aftermath of his rampages.
- Overly Long Tongue: Uses it to stab Toto repeatedly.
- Sea Monster: A sea creature that ate Gyaos' remains and was mutated into a giant monster as a result, developing a taste for human flesh in the process..
- Tongue Trauma: Toto rips out his tongue.
- Alternate Company Equivalent: She's Gamera's version of Miki Saegusa, a human with a psychic link to the main kaiju.
- The Heart: To Gamera. He's more savage once their connection is severed.
- The Lancer: To Gamera in a way.
- She Is All Grown Up: She was a high schooler in the first movie. In college by the third film.
- Tomboy and Girly Girl: Asagi grows up to be a bit of a tomboy by the time she reunites with Nagamine in the third film.
- He's Back: In Gamera 3: Awakening of Irys.
- Plucky Comic Relief:
- Took a Level in Badass: Actually kind of helpful and heroic in the third film.
- Weirdness Magnet: Can't catch a break.
- Beware the Nice Ones: If she sees someone spouting nonsense, she won't hesitate to call them out.
- The Smart Gal: Bird expert.
- Tomboy and Girly Girl: Is a bit quieter and more reserved in the third film, while Asagi has matured into a bit of a tomboy.
- The Worm Gal: Bird expert brought in to study the Gyaos.
- The Smart Gal: Like Nagamine, but more quiet and softspoken
- Evil Counterpart: To Asagi though she's not outright evil but hurt.
- My God, What Have I Done?: Starts to regret her bond with Iris near the end of the film after watching the death and destruction Irys brought.
- The Quiet One: Due to her trauma she's quiet and reserved.
- Weirdness Magnet: Not only involves herself with Irys, but Gamera and the Gyaos, too.
- Woobie, Destroyer of Worlds: She lost her parents during the battle between Gamera and the first Super Gyaos, her adopted family openly talks bad about her, she and the one part of her foster family she cares about are bullied by the neighborhood. Yeah, she's directly responsible for Iris (and depending on which choice you pic from his Multiple-Choice Past, perhaps directly responsible for what he became), but the poor girl's been through hell.
- Dogged Nice Guy: To Ayana.
- Fake Ultimate Hero: Not that he really believed it but he did snap Ayana out of a trance.