Mike Peterson—Deathlok

Only finally getting to another Agents of S.H.I.E.L.D. character. The show is unfortunately underrated, and has a slew of Marvel characters that wouldn't otherwise find their own way into the MCU.

As a good example, one of the first supers of the show, and one of my personal favorites, is Deathlok.

Name: Michael Peterson
Race: Human (Cyborg)
Experience: 70 (Heroic)
Power Level: Four Color with Super Karma (Rising Stars, 50 PP)
Agility d8; Smarts d6; Spirit d6; Strength d12+3; Vigor d10
Pace 6; Parry 7; Charisma –2; Toughness 14 (4)
Hindrances: Bad Luck, Heroic, Obligation (M—The Clairvoyant), Loyal, Poverty, Ugly, Vengeful (M)
Edges: Arcane Background (Super Powers), Take the Hit, First Strike, Nerves of Steel, Dodge, Combat Reflexes, Marksman.
Skills: Climbing d6, Fighting d10, Intimidation d6, Notice d8, Persuasion d6, Shooting d8, Stealth d6, Streetwise d6.
Inventory: Arm-missiles ×2, EMP missiles ×2.
Powers:

• Armor +4 (3): Hardy, Partial Protection (–1). Device (–1, body armor).
• Gifted (2): Deathlok is able to access the internet and learn to do nearly anything on a dime.
• Heightened Senses (4): Infravision, Low Light Vision, Super Sight. Spatial Sense (X-Ray Vision). Requires Activation. (Cybernetic eye.)
• Interface (2): Cybernetic interface.
• Leaping (3): Level 3. Leaps 8" vertically and 16" horizontally. (Centipede serum and cybernetic leg.)
• Regeneration (1): Level 1, rolls to heal every day. Limitation (–1, must eat ten times as much food).
• Speed (2): Pace 12. (Centipede serum.)
• Super Attribute (12): Agility +1, Strength +3, Vigor +2. (Centipede serum.)
• Super Skill (1): Shooting +1. 
• Toughness +3 (3): Centipede serum.

Melee Combat (Switchable)

• Attack, Melee (7): Damage Str+d6. Climb, Multiple Attacks. Switchable (primary). (Centipede serum.)

with

• Attack, Melee (5): Damage Str+2d6, AP 4, Heavy Weapon, Lethal, One Arm. (Cybernetic leg).

Missiles Systems (Switchable) 

• Attack, Ranged (10): Range 12/24/48, Damage 3d6, RoF 2, MBT, AP 2, Heavy Weapon, Lethal, Requires Material (–2, arm-missiles). Switchable (primary).

with

• Malfunction (4): MBT. Limitation (–1, requires Shooting roll). (EMP missiles.)

Mike Peterson was an ordinary man down on his luck: working a heavy labor factory job, tight on cash, and raising his kid as a single father. Unfortunately, he suffered a back injury, and his job cut him loose while he was in recovery. Had it not been for the mysterious organization that approached him—Centipede—he may have lost his house, or even his kid.

Centipede, however, stepped in and provided Mike is an experimental serum that restored his health and granted him incredible powers of superhuman strength and durability.

Centipede Serum (25 PP):

• Attack, Melee (5): Damage Str+d6. Climb, Multiple Attacks. (Centipede serum.)
• Leaping (2): Level 2. Leaps 4" vertically and 8" horizontally. (Centipede serum.)
• Regeneration (1): Level 1, rolls to heal every day. Limitation (–1, must eat ten times as much food).
• Speed (2): Pace 12. (Centipede serum.)
• Super Attribute (12): Agility +1, Strength +3, Vigor +2. (Centipede serum.)
• Toughness +3 (3): Centipede serum.

Soon after, the laboratory that Mike received his powers from was bombed. Mike rushed towards it, climbing up the side of the brick building to make it to the top floor and save the scientist that granted him the serum. This allowed him to be found and tracked down by Skye, who tried to convince him that he would be hunted down by S.H.I.E.L.D. He brushed her off, but the serum began to have adverse effects. Eventually, he would detonate, and he kidnapped Skye to try and go off the grid. Luckily, after a small confrontation through to the efforts of Coulson's team, they were able to subdue him and even recruit him to S.H.I.E.L.D.

Several months later, Peterson was being trained by S.H.I.E.L.D. in methods to increase his hand-to-hand combat skills and physical strength when he was requested by Coulson to help bring down the Centipede Project, to which Peterson immediately jumped onboard. They were able to subdue a few other Centipede super soldiers, but was then blackmailed by Raina into betraying Coulson to the Centipede Project. On the bridge where the double-crossing occurred, a massive explosion occurred which appeared to have killed Mike. Unfortunately, Mike woke up with half of his face scarred and one of his legs amputated, where he began receiving orders directly into his newly-cybernetic eye from Centipede.

Slowly, Deathlok was supplied with more and more tech enhancements, and began to lead S.H.I.E.L.D. on a wild goose chase before HYDRA emerged from within. After their emergence, Deathlok worked directly with the Clairvoyant, as his son was being held hostage. He directly assisted in apprehending Skye to unlock information about the GH.325 chemical.  A few days later, however, his son was rescued by Skye, and Mike turned on the Clairvoyant, attempting to kill him.

After this, Mike was upgraded with EMP missiles instead of lethal ones, and began to work with S.H.I.E.L.D. again, tracking down a HYDRA scientist named List, before being called back to the states to save Coulson and Hunter from a new rogue faction of S.H.I.E.L.D. He then assisted the team in tracking down Skye, who had been kidnapped by the Inhumans, and later HYDRA. During his capture, he was disassembled, and is still recuperating from the injuries. It is unknown if he will ever return to service.

Power Stunt:

• Stun (9): Heart Attack (+6), Strong. Once—and only once—Deathlok used a short range, experimental shock unit to stop Grant Ward's heart. The attacker must win with a raise, but if he does, the victim is immediately Incapacitated and must make a Vigor roll. On a success, he is Shaken and remains so for 1d4 rounds. On a failure, he dies in 2d6 rounds (which can be saved by a Healing roll at –4, though the victim remains Incapacitated). The user can also start hearts again, by touching the target and making a Spirit roll (this doesn't heal any wounds, only restart a stopped heart).

—DoctorBoson

Brock Rumlow—Crossbones

Continuing with the trend of publishing characters we probably won't be seeing again anytime soon, let's look at Crossbones. Famous in the comics for killing Captain America, his role in the MCU is slightly different...

Name: Brock Rumlow
Race: Human
Experience: 100 (Legendary)
Power Level: Pulp Hero (15 PP)
Agility d8; Smarts d6; Spirit d8; Strength d10; Vigor d8
Pace 6; Parry 8; Charisma –2; Toughness 14 (6)
Hindrances: Death Wish (m, kill Captain America), Ruthless (M), Stubborn, Ugly, Vengeful (m)
Edges: Arcane Background (Super Powers), Brawny, Quick Draw, Steady Hands, Marksman, Combat Reflexes, Dodge, Two-Fisted, Improved Nerves of Steel, Frenzy, Take the Hit, Strong Willed.
Skills: Fighting d12, Intimidation d6, Knowledge (Battle) d4, Notice d6, Shooting d10, Stealth d6, Streetwise d6, Taunt d6, Throwing d8, Tracking d4.
Inventory: Battle armor (Armor +6), SIG Sauer (2d6, AP 1, 12/24/48, Semi-Auto, 12 Shots), gas mask, comms unit, bomb vest, magnet grenade (3d6, 5/10/20, MBT, sticks to metal surfaces: roll at –6 to pull off).
Powers:

• Armor +6 (1): Partial Protection (–1). Device (–1, advanced body armor).
• Attack, Melee (5): Damage Str+2d6, Multiple Attacks. Device (–1, piston gauntlets).
• Super Edge (4): Improved Nerves of Steel, Take the Hit. (Fried nerve endings.)
• Resistance (1): Electricity. +4 to resist effects, +4 Toughness. (Fried nerve endings.)
• Toughness +1 (4): Hardy. (Fried nerve endings.)

Brock Rumlow was a S.H.I.E.L.D. agent and leader of a STRIKE team, working with Captain America and Black Widow fairly often, including recovering a weapon known as Zodiac and the recapture of the Lemurian Star.

Winter Soldier Inventory: Steyr AUG A3 (2d8, AP 2, 24/48/96, RoF 3, Auto, 30 Shots), Suppressor, SIG Sauer (2d6, AP 1, 12/24/48, Semi-Auto, 12 Shots), comms unit, kevlar vest with inserts (Armor +3, Armor +6 vs ballistics, –4 AP vs ballistics), stun wand (Vigor or incapacitated), combat knife (Str+d4, 3/6/12).

Rumlow is a master martial artist, marksman, and tactician, instrumental in a variety of S.H.I.E.L.D. operations. Unfortunately, he is also an undercover HYDRA agent. After the assassination of Nick Fury, Rumlow was tasked with bringing in Captain Rogers, though he was unable to do so several times, even with the help of the Winter Soldier. During HYDRA's uprising, Rumlow helped secure the launch codes and keep S.H.I.E.L.D. off HYDRA's back as they did what they could, even engaging in hand-to-hand with Sam Wilson. Unfortunately, he was taken down by a collapsing building after Project: INSIGHT helicarriers crashed into it.

This didn't kill him, however. Rumlow went off the grid and disavowed HYDRA, instead working for himself and his small team of mercenaries, just itching at a chance to kill Steve Rogers. That chance came in Lagos, Nigeria almost two years later, where Rumlow led an attack on an Institute for Infectious Diseases. After isolating Captain America, Rumlow went all-out in his new battle suit to try and wear the Captain down, before attempting to distract him and detonate the explosives strapped to his chest and take Steve with him. While the suicide bombing didn't take out Captain Rogers, it did kill over a dozen innocent civilians, and sparked the creation of the Sokovia Accords.
—DoctorBoson

Bucky Barnes—Winter Soldier

One of the most loyal characters in the MCU, Bucky is another soldier out of time. He's also going to be one of the main characters of Civil War, by the look of it. Can't wait to see more of him in action; it's gonna help me round out his build.

Name: James Buchanan "Bucky" Barnes
Race: Human
Experience: 40 (Veteran)
Agility d8; Smarts d6; Spirit d8; Strength d8; Vigor d6
Pace 6; Parry 5; Charisma 2; Toughness 5
Hindrances: Code of Honor, Loyal, Stubborn
Edges: Attractive, Command, Marksman, Dodge, Hard to Kill
Skills: Climbing d6, Driving d4, Fighting d6, Notice d8, Persuasion d4, Shooting d10, Stealth d6, Swimming d6, Throwing d6
Inventory: M1A1 Thompson (2d6+1, AP 1, 12/24/48, 30 Shots, RoF 3, Auto, Min Str d6), M1941 Johnson (2d8, AP 2, 24/48/96, 10 Shots, Semi-Auto, Min Str d6), M1911A1 (2d6+1, AP 1, 12/24/48, 6 Shots, Semi-Auto).

Sergeant James Barnes was a soldier during World War II and has been friends with Steve Rogers since they were young. Once the U.S. entered the European theater, Bucky joined up in the 107th, serving as an excellent marksman and fairly high ranking NCO. Unfortunately, the 107th was almost wholly taken prisoner and held at one of HYDRA's R&D facilities. Bucky was forced to assist in the manufacturing of HYDRA weapons, and later was taken by Arnim Zola—Red Skull's chief scientist—for experimentation, attempting to recreate the legendary super-soldier serum.

Some time later, Captain America raided the facility, rescuing Bucky and over 400 other men. Steve quickly recruited Bucky, along with a few others, to serve as Howling Commandos—Cap's private squad specializing in sabotaging HYDRA operations. After nearly a year with the Howling Commandos, Bucky was tossed out of a train and down a cliff on a mission to kidnap Zola.

Name: Bucky Barnes
Race: Human
Experience: 70 (Heroic)
Power Level: Heavy Hitter (60 PP)
Agility d12; Smarts d6; Spirit d8; Strength d12+2; Vigor d12
Pace 6; Parry 9; Charisma 2; Toughness 11 (2)
Hindrances: Code of Honor, Loyal, Ruthless (M), Stubborn.
Edges: Arcane Background (Super Powers), Attractive, Ambidextrous, Combat Reflexes, Counterattack, Improved Frenzy, Improved Level Headed, Quick Draw, Two-Fisted, Command, Marksman, Improved Dodge, Hard to Kill, Take the Hit, Block, Assassin.
Skills: Climbing d6, Driving d6, Fighting d12+1, Knowledge (Espionage) d4, Notice d8, Persuasion d4, Piloting d4, Shooting d12, Stealth d8, Swimming d6, Throwing d8.
Inventory: Kevlar vest (Armor +2, Armor +4 vs ballistics, negate 4 ballistic AP), auto-grapnel (10/20/40, Pace 10), Knife (Str+d4), SIG-Sauer ×2 (2d6, AP 1, 12/24/48, 12 Shots, Semi-Auto), Glock 19 (2d6, AP 1, 12/24/48, 17 Shots, Semi-Auto), COP .357 Derringer (2d6+1, AP 1, 5/10/20, 2 Shots, Semi-Auto (no Rapid Fire), Vz.61 Skorpion (2d6, AP 1, 12/24/48, RoF 3, 20 Shots, Auto), RGN Grenade (3d6, 5/10/20, MBT).
Powers:

• Armor +6 (1): Limitation (–2, Left Arm only).
• Attack, Melee (3): Damage Str+d6, Heavy Weapon, One Arm, Stackable. 
• Regeneration (4): Level 2, roll to heal every hour.
• Speed (6): Pace 24, –1 to hit. Catch and Throw.
• Super Attribute (18): Agility +2, Strength +4, Vigor +3.
• Super Edge (16): Ambidextrous, Combat Reflexes, Counterattack, Frenzy, Improved Level Headed, Quick Draw, Two-Fisted.
• Super Skill (8): Driving +1, Fighting +3, Knowledge (Espionage) +1, Piloting +1, Stealth +1, Throwing +1.
• Toughness +1 (1): Enhanced physiology. 

After Bucky was tossed from the train, however, HYDRA operatives found the still-living Bucky and began to experiment on him. They amputated his arm, replacing it with a powerful cybernetic replacement, pumped his system full of drugs and chemicals, and tried their hardest to make Bucky their ace in the hole. Throughout this process, Bucky had his memories wiped over and over, brainwashed until he complied with HYDRA's commands.

Before Bucky—now known as the Winter Soldier—was deployed for his first assassination, the soviet star was painted onto his cybernetic arm to throw people off of HYDRA's trail. Over the years, he was left in cryostasis until his services were required. Once his job was done, his mind was wiped and he was placed back into cryo until he was to be called upon again.

During the fall of S.H.I.E.L.D., the Winter Soldier was called out once again to assassinate Nick Fury, and afterwards sent to hunt down the recently resurrected Captain America to make sure that Project: INSIGHT launched. On his mission, he killed at least several S.H.I.E.L.D. agents and a handful of civilians, but after the destruction of the helicarriers, Bucky appeared to be regaining his memories.

He was last seen in early 2014, going underground to evade the authorities and learn who he really is.
—DoctorBoson

Johann Schmidt—Red Skull

Widely lauded as one of Marvel's best villains behind Loki, we finally dip into some of the good pile, and... he's just a Street Fighter. Not even Legendary.

Yes, for all of the Red Skull's popularity, he's one of the lower-powered villains we see in the MCU. Of course, he also has an army behind him, so what does it really matter, right?

Name: Johann Schmidt
Race: Human
Experience: 60 (Heroic)
Power Level: Street Fighter with Super Karma (35 PP)
Agility d10; Smarts d10; Spirit d10; Strength d12+2; Vigor d12
Pace 6; Parry 7; Charisma –6; Toughness 10
Hindrances: Arrogant, Bloodthirsty, Ruthless (m), Ugly
Edges: Arcane Background (Super Powers), Charismatic, Brawler, Command, Counterattack, Inspire, Frenzy
Skills: Fighting d10, Intimidation d6, Knowledge (Battle) d6, Knowledge (Occult) d8, Knowledge (Physics) d8, Notice d6, Persuasion d6, Piloting d6, Shooting d6, Throwing d6
Inventory: Luger (2d6–1, 10/20/40, Semi-Auto), Pulse Pistol (2d6, AP 2, 10/20/40, Semi-Auto)
Powers:

• Regeneration (5): Level 2, Recovery. Rolls to heal every hour.
• Speed (4): Pace 24, –1 to hit.
• Super Attribute (22): Agility +2, Smarts +1, Spirit +1, Strength +4, Vigor +3. 
• Super Edge (2): Brawler.
• Toughness +2: Dense muscle fibers.

Johann Schmidt was professor of physics at one of the German universities, but was always fascinated with the occult, specifically Norse mythology, and built his research around the assumption that they held more truth than legend. He brought these theories to Adolf Hitler, as was later picked up by Himmler after Hitler's SA agents threw him out (unbeknownst to the Führer).

Promoted to the SS, and later the head of Hitler's advanced research division—HYDRA—Schmidt was a brilliant strategist and an extremely capable leader. He took keen interest in Doctor Abraham Erskine's research in a super soldier serum, and strong-armed Erskine into continuing his research for the purposes of HYDRA. Schmidt, obsessed with finding power, took the serum himself, but this had the unintended side-effect of making him look like a monster.

Erskine escaped with the help of Agent 13, and Schmidt refocused his efforts on Norse mythos, leading him in search of the Tesseract: an ancient artifact of nearly infinite power.

This device was able to power HYDRA's entire arsenal, and Schmidt used this to break away from the Third Reich and begin his own campaign for world conquest. Very soon, he ran into Captain Steve Rogers, and immediately formed an odd arch-rivalry with the soldier: jealous, vitriolic, and confused as to why the Captain wouldn't want to join him as a god.

This came to a head in 1944, when the US assaulted HYDRA's base. Schmidt was... transported, or disintegrated, or something, after picking up the Tesseract. He is not confirmed dead, but he's unlikely to show up for quite some time.
—DoctorBoson