In "The New and Improved Carl Morrissey", the title character develops superhuman strength and enhanced reflexes. He uses them to clean up his neighborhood as he wants Bradley Park to be the nice, safe place that it was in his childhood instead of a hangout for junkies. Carl stops muggers and saves a young woman named Maureen from being raped in the park, becoming what Diana describes as a "sad sack supervigilante." However, his new abilities do not make him invulnerable as he thought they did. He is stabbed in the stomach while fighting three thugs in Bradley Park and dies from his wound with minutes.
In "Fifty-Fifty", it becomes clear that Isabelle possesses super strength as she effortlessly throws Tom across the room.
Vampires also have super strength. Joss also admitted in interviews and commentaries that he never set a definitive limit to the strength of either vampires or slayers as that could get in the way of writing the story. So for the sake of the plot, they're all Strong as They Need to Be.
Vampire strength varies greatly, with older vampires tending to be stronger. "Bloodline" seems to matter too; those turned by truly ancient vampires like the Master seem to be unusually strong even by vampire standards, from the moment they're turned. The most commonly seen vampires in the Buffyverse e.g Angel and Spike, benefit on both counts.
Willow also gets this temporarily. After casting a spell on herself, she's able to take on Buffy and win.
Forrest has this pre- and post-transformation.
Pretty much all demons are stronger than humans. The strength of the demons varies, depending on the type of demon they belong to, but every demon is much stronger than a human being.
This also applies to half-demons. Any half-demon who has fought physically and not with magic has shown that he is superhuman strong. The only exception is Cordelia, but she is not a naturally born half-demon, but became one by magic.
The Judge and The Beast are so strong that they could not be beat in a regular fist fight, requiring pragmatism from the heroes.
Hamilton beat the crap of the aforementioned Illyria (albeit after her power was weakened) and could put his fist straight through a regular human being. Angel was no match for him... until Hamilton unwisely reveals his strength comes from the blood of Senior Partners running through his veins.
Werewolves are also superhuman in their transformed form, but by the standards of most demons, vampires and slayers, rather weak.
Even undead like zombies and mummies are still much stronger than ordinary humans.
Done subtly in Doctor Who, where the Doctor is physically stronger than a human of his height, weight, build and apparent age should be, but not so much that it's relevant that often — the Doctor rarely physically fights people anyway, even though when he does he's usually extremely good at it — and it Depends on the Writer. At the absolute peak of his physical strength he's shown to be able to do things like punch down a sealed steel door, though this is only apparently possible in extreme biological circumstances. Generally, he's somewhat stronger and a lot more physically resilient than a human equivalent to his current body — he can lift middle-sized rocks without difficulty but wouldn't be able to lift a car. Other Time Lords also have this ability — even the small and slight second incarnation of Romana is able to easily carry a metal robot the size of a large dog.
Plenty of other Whoniverse alien races, monsters and robot such as the Cybermen, Sontarins, Ice Warriors, the Slitheen family etc have super strength. This includes the Empty Child, who despite his size could punch through a thick wall, while chasing the Doctor, Rose and Jack.
The human/Gua husks in First Wave are normally designed to be stronger than humans. In the second episode, a Gua easily kills a guy with a Neck Snap. In a later episode, a special husk with a higher percentage of Gua DNA is made for an assassin sent to kill Cade. She can punch through metal containers like cardboard. It takes a heavy cargo container dropped on her to finally stop her.
Owing to his uncommonly large frame, Hodor is absurdly strong, easily capable of breaking a man's neck like a dry twig and throwing wights around like rag dolls. Given his nature, though, this mostly just translates to him merrily hauling Bran around.
Can’t forget the massive and The Dreaded Gregor Clegane aka “The Mountain” one of the first things we see him do in the series is cut an entire horse in half. Later on in “The Mountain vs The Viper” he busts Oberyn Martell‘s skull by squeezing it. Becoming a zombie didn’t diminish his strength in the slightest, being able to kill a man with simple shove.
Gregor’s brother Sandor aka “The Hound” is no slouch either being able to lift a man up with one arm and rip his intestines out with the other (he’s the good brother BTW). Later on Sandor carries the massive crate containing a Wight and even slices it in two when it gets out. Fitting Sandor is the only one who can match Gregor’s strength in a fight... twice.
Downplayed but Brienne of Tarth has shown the impressive strength being able to send Ayra flying with one kick and even overpower Sandor in a fistfight.
The White Walkers appear to have this to some degree, the Night King, in particular, can Neck Lift his foes and throw his ice spear hard enough to kill Viserion who's a tough scaled dragon.
On Gilligan's Island, in the episode where the castaways grew and ate radioactive vegetables, Gilligan gained super strength from eating a lot of spinach.
In Haven, Duke Crocker eventually learns that he (and the rest of the Crocker family) has super strength (enough to send a guy flying twenty feet with a shove or tear a car door off its hinges), but it only activates when the blood of a Troubled person makes skin contact with him (the blood absorbs into his skin), and it only lasts for a few minutes or seconds. While active, his eyes glow and he becomes semi-berserk.
Niki has super-strength. It's more easily accessed by her "Jessica" side, though.
Volume 3 introduces Knox, a villain who's Super Strength is powered by fear. While Niki has run-of-the-mill super strength, as long as Knox is surrounded by fear he can get stronger and stronger, kinda like The Hulk is with anger. On the other hand, he's powerless if nobody around is afraid.
There was also Mohinder, after he injected himself with a formula for super people. It started to kill him, but he got an improved formula that allows him to use without fear.
The writers seem to really hate this power, which is strange considering it's one of the cheapest effects to do. Volume four Mohinder is the first character with this power that wasn't either killed off in one episode, permanently insane from his power, or required some gimmick to make it work (such as fear).
Interview with the Vampire (2022): All vampires are much stronger than humans, and that includes Claudia, who's at a disadvantage because of her adolescent body, but she can still take down human males who are bigger than she is, like Chief Bardeen. Lestat de Lioncourt tears off the head of a train conductor with just his bare hands.
Kingdom Adventure: In spite of taking an arrow to the back, it's revealed that Reagle has this—at least in his human form. He was able to pick up a large piece of tree trunk that was pinning Garbo down, while working alone and with only one hand, when several normal Lumans working together couldn't budge it.
LazyTown: Sportacus rarely uses it, but he's superhumanly strong — in the season four episode "Mystery of the Pyramid" he lifts the entire pyramid several feet off the ground to dislodge a boulder blocking the door, using nothing more than a rope and grapnel.
Let the Right One In: Vampires are far stronger than humans, so that even Eleanor (physically twelve) can throw around adults.
Burg the Devaronian from Chapter 6: “The Prisoner” is shown being able to lift and throw massive droids, hold open automatic doors open and knocks Mando around like a ragdoll.
The Mandalorian himself has shown the strength to rip an Enforcer Droids’s arms off and in Chapter 8: “The Reckoning” Mando physically picks up the E-Web heavy repeating blaster to mow down the Imperials. In Season 2 he’s strong enough to run a Beskar spear through a Dark Trooper. This all can probably be chalked up to Charles Atlas Superpower though, as Mandalorians get Training from Hell from childhood.
Percival in Merlin. He's HUGE and his first scene in the show involves him saving the lives of Arthur and Co by causing a rock slide.
Calven from My Wife and Kids can throw refrigerators across the room and move factory trucks by pushing them.
In No Heroics She-Force is the world's third strongest person. And apparently sexually clumsy...
In "The Deprogrammers", the Torkor are considerably stronger than humans. With an angry sweep of his arm, Evan Cooper's master Koltok kills another of his slaves, throwing him across the room in the process, for breaking a valuable container of Seragon oil.
In "Unnatural Selection" and "Criminal Nature", the Genetic Rejection Syndrome sufferers, most of whom are children or teenagers, are several times stronger than an adult man.
In "Stranded", Tyr'Nar provides Kevin Buchanan with a neuromuscular enhancer (otherwise known as a strength patch) which significantly increases his strength. It is worn on the user's hand. After he finally stands up for himself after being once again bullied by the Jerk Jock Nelson Tyler, Kevin effortlessly throws him aside as if he were a pillow. Nelson hits his head against a wall and ends up in hospital with a concussion.
In The Camp", the androids have this-the commandant grabs the sharrak's tentacle and holds it back easily, then actually rips one off with one hand.
Elliot Reid from Scrubs has it. What? She has the finger strength of a rock-climbing jazz pianist, once lifted J.D. off the ground by his neck, and is described to be "thick through the trunk"!
She also has powerful legs, demonstrated when she snapped a food tray in half and served as the bottom third of the World's Most Most Giant Doctor for about 15 seconds; Lonnie isn't as sturdy as she is.
Second Chance (2016): After he's resurrected and de-aged by the Goodwins, Jimmy's strength takes an inordinate leap even for a man in his physical prime. He almost punches through a steel door in the first episode.
An episode of Stargate SG-1 has the titular team (minus Teal'c) get special armbands that grant them Super Speed and Super Strength. When using a Tok'ra device to measure his strength (which involves squeezing a metal sphere), O'Neill accidentally crushes the device. He also casually makes a hole in the drywall of General Hammond's office to prove a point. Naturally, a whole army of Jaffa is not enough to stop them at that point. Daniel is even able to effortlessly carry an extremely-dense brick of weapons-grade naquadah that are shown to require two Jaffa (stronger than regular humans) to carry on a stretcher.
Speaking of which, the Jaffa themselves are a human offshoot with significantly increased strength. Not enough to make them impossible to beat in hand-to-hand combat, but enough to give significant trouble to characters trying to do so.
The Unas are very strong too. An Una can easily throw a person through the air. If a Una is the host for a symbiont, it becomes even stronger.
Humans who have symbionts are also physically stronger than ordinary people. However, that can vary.
Dahj and Soji both display this. The former takes on multiple larger Romulans (who are stronger than humans) easily, while the latter breaks through a wood floor with her bare hands. This is a mark of their really being artificial humans.
F8 and his ilk "can rip through solid titanium without breaking a sweat."
In the same episode, Narek kicks a Soong-type android hard enough to knock it over. Although he's soon overwhelmed by two of them, Narek is stronger than a human by virtue of being a Romulan, and being able to hit the android with that much force is still more than what an average human can do. He can also pin Saga to the ground, plus he falls from a great height and lands squarely on his two feet without getting hurt. This featurette of a Deleted Scene demonstrates that Narek was originally meant to be far more badass than what we got onscreen, as he uses a capoeira-like Fantastic Fighting Style against five synths.
When Seven of Nine fights Narissa, the former is stronger than the latter, so that means Seven is stronger than a Romulan woman.
Grigori the Russian Implacable Man is supposedly just human, but in his first scene, he does a Neck Lift (which is pretty much impossible in Real Life) to a poor scientist strangling him to death.
Many of the creatures of Supernatural including demons, werewolves, vampires, and djinn, are much stronger than humans. Strongest of all are the angels who make other creatures look like complete pushovers in comparison.
In "Teacher's Aide", Miss Peters develops super strength after she is possessed by the spirit of a gargoyle. After a gang member named Trojan tells her that he comes to school to see her legs, she lifts him up by his trousers and throws him against the wall. Later, she catches another student hitting and kicking his locker and shoves him up against it, telling him that he should respect the school as it is older than his grandmother. When another gang member named Wizard turns on his boom box at full volume during class, she tears it apart with her bare hands and physically throws him out of class when he tries to attack her. The rest of the students are much more attentive after that.
In "Monsters!", the vampire Emile Francis Bendictson uses his super strength to lift up his car so that he can clean underneath it when he thinks that no one is looking. However, Toby Michaels, who had been spying on him, sees the whole thing.
The many heroes of the Ultra Series have certainly demonstrated this, with all of them being able to pick up kaiju and toss them around like ragdolls with ease. Some of the monsters as well, notably Red King from Ultraman and his expies Black King from Return of Ultraman and Silvergon from Ultraman Tiga — both of whom take it up to eleven; Silvergon could punch through force fields with his bare hands.
Number One a.k.a. Luther has this as his primary ability. He can rip doors off their hinges, throw bowling balls like they're baseballs, and when drunk, he shoves his brother Klaus so hard that he goes flying across the room. In Season 2, Luther is shown punching a hole through brickwork, lifting a tractor, and (in the Bad Future) breaking the ground just by jumping from a great height. Lila uses Luther's own strength against him in the finale with her Power Copying ability, pulling off a Punch Catch.
Hazel appears to have enhanced strength as well, given that he can perform wrestling moves on Luther and overpower him. It's likely that the Commission gives physical enhancements to its agents, which would explain why Five is remarkably strong despite having the body of an adolescent.
Played with in The Witcher (2019). Geralt, when taking his special potions that give him full control of his supernatural body, is shown to be capable of superhuman feats like fighting a Kikimora, cutting its limbs off and grappling with it. Later on, when fighting the Striga, Geralt is strong enough to toss the creature around and even punch it across the room with his silver knuckledusters. Subverted, though, as when Geralt in another episode finds himself chained and imprisoned in a cell without his potions, he's as helpless anyone else would be.