As of Chapter 1

The Arachnid Swordsman

Full Name: Nicholas Gainsborough
Alias: Knight-Crawler
Age: 15
Gender: Male
Sexuality: Straight (Doesn't think about love all too much)
Personality: Knight-Crawler is fearless, having to be fearless to fulfill a prophecy where he's from. He doesn't fully grasp it, but he knows he has to be strong. Aside from that, he's also pretty logic-smart, just from intuition, although he can get stuck. He's also pretty trusting of everybody unless given good reason to. He's humble and serious while wearing this costume, but without it, he acts more like a teenager, but still somewhat serious
Flaws: Given he's from another dimension, especially from one without any proper electronics, he has a hard time grasping them. And he's not too smart in terms of scholarly subjects, except for general knowledge. He's also not too good at modern phrases or abbreviations (ASAP would be like the only exception). And due to bad experiences in the past, he is Terribly afraid of the forced taking of blood and drowning.
Backstory/How they got their Powers: He was exploring a magical forest one day, with his trusty shortsword having been trained to use one. He was walking until he suddenly found a pedestal with a colorful looking sword. As he approached it, a tiny little spider was nearby, crawling up the sword. It looked like any other spider, but this one has glowing lime green eyes, and it seemed more than an average spider. Anyways, as he grasped the sword and pulled it out, the spider climbed onto him and bit him. Rather than poison or kill him on the spot, magic was let into his DNA. That was how he got his powers. (Later on, a tribe of spider-humanoids found out and gave him the costume and his belts and sheath and should and whatnot) From that day onwards, he was known as Knight-Crawler.
Powers: He's the wielder of excalispider, although others with Spiderpowers are able to. With magic infused in his blood, he can use the magic in the sword and use items as well. With the sword, aside from being able to even wield it, he can shoot webs out from it and use those to swing around. He has an arsenal of weapons kept in his magic belt pockets, ranging from a bow, to boomerangs to a magic staff with elemental plugs that go into it. Not only that, but he also has general Spider-man powers. He can climb walls, and has a spider-sense, although it acts much like the Partner Faries in the N64 Zelda games, where it just gives general facts about whatever it focuses on
Strengths of the Power: He's spiderman. Not a lot to say in terms of what he's good against. But he is good with swords, but that's not really from the powers. He's Strong, not only from the powers but from the general sword-training. 
Weaknesses of Power: He's also human, so he can be hurt by pretty much anything a human would be hurt by.
Affiliation: Good
Looks:

Costume looks:

(First pic drawn by xXOceanHeartXx)

The Symbiotic Duo

Full Name: Samson Sanders
Alias: Amon
Age: Like 16
Gender: Male
Sexuality: Bisexual
Personality: Samson is pretty kind to most people he meets, although this is with common sense in play with stranger danger. Aside from that, Samson seems to be a slight chocoholic and a geek as well. He's a bit of a daredevil, with the reasons stated in the powers. He can be a bit goofy at times as well.
Amon Personality: Dark and mysterious, Amon is an Alien from another planet who fled due to his planet's race becoming evil, and fearing he would also turn. Most of his heroics is derived from: the need to provide adrenaline for food for himself, the idea of him and his host needing each other, but mainly due to Samson's much more kind personality.
Flaws: Samson can be a bit weird and definitely kind of annoying to some people. He's a bit oblivious to this, but can catch onto this. And he talks to himself (Although he's really talking to Amon), which would explain the weird side.
Backstory: Amon, a Klyntar fled his Home planet (Klyntar) out of fear that he would turn evil, much like his planet's race. He eventually wound up on earth, finding himself be a creek in some woods.- This is where Samson comes in. Samson, age 14, found Amon one day while exploring some woods. He touched the black goop which was Amon, and Amon took the teen as his host. The two soon became good friends and Samson accepted the idea of being his host after hearing him out. The two have been together as one ever since
Powers: Symbiote, named "Amon"
Strengths: It's a symbiote, although to make it actually not OP, it's a bit lowered down. Unless it's space or gasses, Amon can hold his breath for roughly an hour. He also has superhuman strength and the ability to heal their host very fast. This is all with Amon in control. Otherwise, Samson is just an Average Human.
Weaknesses: He is hindered with extremely loud noises and can be defeated with extremely hot temperatures (much like an explosion or with electricity), when Amon is in control. Otherwise, anything that would hurt a human hurts Samson
Affiliation: Good
Looks: Samson is an average teenage boy, nothing to really distinguish him from the majority of the teens in the world. He has Blond hair (As blond is male and Blonde is female, fun fact), freckles and a modern quiff haircut. He has freckles and big brown eyes. He looks a bit taller, with the help of his black combat boots. He also wears a dark grey button up jacket and matching pants, and a white undershirt, followed by a thunderbolt pendant.
"Costume" looks:

Ignore the Avengers Logo and the "Work for Avengers" part. I wish I didn't add it in, in hindsight, so he can be used for more things without having to elaborate

As of Chapter 2

Secret Agent MOM

Full Name: Sandra Sanders
Alias, if at all: Agent Sanders (?)
Age: 35
Gender: Female
Sexuality: Straight
Personality: Sandra is Samson's mother, and due to that, she's protective of him, although she can be a bit too overprotective at times, but mainly to him. To others, shes more normal around. While she can be serious and able to think on her feet, she is still caring and kind and somewhat outgoing. Although she'd probably be more comfortable with work than hanging out with friends
Flaws: shoot idk none are coming to mind
Backstory: I doubt there needs to be one. She's a shield agent/deputy director (hey ask Shadow what that means, cause i sure dont haha)
Powers: Unless being able to ground someone counts, none. But she is good at melee combat
Affiliation: SHIELD, duh
Looks: She has long curly locks, and bright brown eyes, which explains why Samson has them. Along with this, she has a smaller nose than average and she's taller than the average woman at 35 years old. Her face is relatively round and she has the same complexion as Samson, but a bit less tan. She isn't very different looking, so she could blend in well within a crowd