Quagmire
See: Appendix, Earth-S, Quagmire

Quan St'ar
Real Name: Quan St'ar
Occupation: Ruler of S'ahra-Sharn, sister city to K'un-L'un
Other Aliases: None
Place of Birth: K'un-L'un
Marital Status: Unrevealed
Known Relatives: None
Group Affiliation: None
Source of Powers: The Globe of Eternity
Powers: Able to open dimensional portals and fire beams of eldritch force
Cause of Death: Devoured by the energies contained within the Globe of Eternity
First Appearance: Master of Kung Fu Annual 1
List of Appearances:
Master of Kung Fu Annual 1 (captured Iron Fist and Shang-Chi, fought off rebellion, consumed by energies of Globe of Eternity)
Final Appearance: Master of Kung Fu Annual 1

Quantum
Real Name: Unrevealed
Occupation: Soldier
Other Aliases: None
Place Of Birth: Dakkam ("alien" planet)
Marital Status: Unrevealed
Known Relatives: None
Group Affiliation: Elite of Dakkam, former ally of Graviton, Halflife I and Zzzax
Source Of Powers: Quantum is an alien
Powers: Superhuman strength, he also has the ability to occupy multiple positions in space at nearly the same time. In practice Quantum can teleport himself with great rapidity bacn and forth among different positions, thereby, due to the persistence of vision, seemingly existing in many positions simultaneously. Besides that he also has the ability to fly and generate flames of unknown composition around himself.
First Appearance: West Coast Avengers Vol.2 #14
History: Nothing has been revealed about Quantum, before he answered a summons sent through hyperspace by Graviton, who was seeking allies for his latest campaign of conquest (see: Graviton). Quantum teamed up with Graviton and his two other allies the alien Halflife and the electromagnetic entity Zzzax (see: Halflife I, Zzzax).
The team clashed with -  and defeated - West Coast Avengers (see: West Coast Avengers), but the West Coast Avenger known as Tigra managed to escape (see: Cat I), disguised as one of Graviton's guards she managed to convince Quantum and Halflife, that each was out to kill the other. As a result Quantum and Halflife began fighting, and when Graviton intervened in the fight, the West Coast Avengers managed to escape.
List Of Appearances;
West Coast Avengers Vol.2 #14 (alongside Graviton, Halflife I and Zzzax fought West Coast Avengers)
Quasar #4 (origin, fought Quasar)
Avengers West Coast Vol.2 #96-97

Quantum Mechanic
See: Appendix, Other Dimensions, Quantum Mechanic

Quasar II
See: Neutron

Quasar III
Real Name: Wendell Elvis Vaughn
Occupation: Protector of the universe, security consultant, former SHIELD agent and security chief of Project: Pegasus
Other Aliases: Quasar, Starknight
Place Of Birth: Fond du Lac, Wisconsin
Marital Status: Single
Known Relatives: Lisa Vaughn (mother), Gilbert Vaughn (father, deceased), Gayle Vaughn (younger sister)
Group Affiliation: Avengers. Former member of SHIELD Super Agents, Project: Pegasus Security Team, Star Masters, Queen's Vengeance, Defenders
Source Of Powers: No superpowers, got his powers from his quantum-bands
Powers: Above normal intelligence, very athlectic (with Quantum-bands): Supersonic flight speed, metahuman durability, has the ability to create energy constructions
First Appearance (as Marvel Man): Captain America Vol.1 #217
First Appearance (as Quasar): Incredible Hulk Vol.2 #234
List Of Appearances;
Captain America Vol.1 #217 (member of Shield Super Agents)
Captain America Vol.1 #228 (having a trianingssession with the other super-agents)
Captain America Vol.1 #229 (alongside other Super-agents fights Captain America)
Captain America Vol.1 #230 (alongside Captain America and Vamp goes to Alcatraz to look for Falcon fights The Corporation)
Captain America Vol.1 #231 (flashback)
Incredible Hulk Vol.2 #232-234 (fought The Corporation)
Marvel Two-In-One #53-58 (as security chief of Project: Pegasus)
Marvel Two-In-One #73
Marvel Two-In-One Annual 5 (mind taken over by Serpent Crown)
Quasar #1 (origin)
Quasar #2 (appointed Protector of the universe)
Avengers Vol.1 #302-303 (assisted Avengers in Super-Nova fight)
Avengerts Annual 18 (joined Avengers)
Quasar #6 (met Uatu, the Watcher)
Marvel Comics Presents #29 (met Jennifer Kale and Man-Thing fought Quagmire)
Quasar #15-16
Quasar #19-25 (fought Maelstrom)
Quasar #26 (fought Thanos)
Sleepwalker Holiday Special #1 (Is seen on Mr. Jyn’s magical viewing screen.)
Slapstick #4 (Arrives with the Avengers at the scene of the Neutron Bum’s attack.)

Quasar IV
Real Name: Phyla
Occupation: Adventurer
Other Aliases: Captain Marvel IV
Place of Birth: Titan
Marital Status: Single
Known Relatives: Mar-Vell (father, aka Captain Marvel I, deceased), Elysius (mother), Genis-Vell (brother, aka Photon III, presumed deceased), Dorrek VIII (half-brother, aka Teddy Altman/Hulkling), unnamed paternal grandparents (presumed deceased)
Group Affiliation: United Front
Source of Powers:
Powers/Abilities:
First Appearance: Captain Marvel Vol.4 #16
History:
List of Appearances:
Captain Marvel Vol.4 #16

Quasimodo
Real Name: Quasi-Motivational Destruct Organism
Occupation: Wanderer, former computer
Other Aliases: None
Place Of Creation: Mojave Desert, California
Creator: Mad Thinker
Group Affiliation: Former partner of Mad Thinker
Source Of Powers: Robotic material, design and construction
Powers: Superhuman strenght, demidog-like stamina and durability
First Appearance: Fantastic Four Annual 4
List Of Appearances;
Fantastic Four Annual 4
Fantastic Four Annual 5
Captain Marvel Vol.1 #7
Amazing Adventures #14
Marvel Team-Up Vol.1 #22
Fantastic Four Vol.1 #202
Rom #42-43
Avengers Vol.1 #253
Iron Man Annual 12

Queely, Alfred
Real Name: Alfred Queely
Occupation: Collector, thief
Other Aliases: None
Place Of Birth: Unrevealed
Marital Status: Unrevealed
Known Relatives: None
Group Affiliation: The Collectors
Source Of Powers: None
Cause of Death: Killed when cut in the chest with a sword
First Appearance: Black Panther Vol.1 #1
List Of Appearances:
Black Panther Vol.1 #1 (the body of Alfred Queely with the Brass Frog in his hand. Discovered by Black Panther and Abner Little)
Final Appearance:
Black Panther Vol.1 #1

Queen
Real Name: Adriana "Ana" Soria
Occupation:
Other Aliases: None
Place of Birth: Unrevealed
Marital Status: Single
Known Relatives: None
Group Affiliation: None
Source of Powers:
Powers/Abilities:
First Appearance: Spectacular Spider-Man Vol. 3 #15
History:
List of Appearances:
Spectacular Spider-Man Vol. 3 #15

Quentin, Ralph
Real Name: Ralph Quentin
Occupation: Former owner of Quentin Carnival
Other Aliases: None
Place Of Birth: Unrevealed
Marital Status: Unrevealed
Known Relatives: None
Group Affiliation: None
Source Of Powers: None
First Appearance: Ghost Rider Vol.2 #63
History:
List Of Appearances
Ghost Rider Vol.2 #63-65
Ghost Rider #69-76
Ghost Rider Vol.2 #79-80

Quentin Carnival
See: Appendix, M.U Companies, Quentin Carnival

Quentin Co.
See: Appendix, M.U Companies, Quentin Co.

Quickdeath
See: Appendix, Futures, 2099, Quickdeath

Quicksand
Real Name: Unrevealed
Occupation: Professional criminal
Other Aliases: None
Place Of Birth: Unrevealed
Marital Status: Unrevealed
Known Relatives: None
Group Affiliation: Masters Of Evil VII, former ally of Mongoose
Source Of Powers: Atomic radiation
Powers: Superhuman strenght, agility and reflexes, god-like stamina. She has the ability to transform herself into a sand-like substance, which can hardened, dispersed, or shaped accordig to her will. She can increase her size and mass to an unknown extent when in sand-form
First Appearance: Thor Vol.1 #392
List Of Appearances;
Thor Vol.1 #392-393
Thor Vol.1 #402
Captain America Vol.1 #388-390
Thunderstrike #13-14
Thunderstrike #22
Thunderbolts #24-25 (as member of Masters Of Evil VII, fought Thunderbolts)

Quicksilver
Real Name: Pietro Lennsherr
Occupation: Adventurer, former professional criminal
Other Aliases: Mateo Maximoff, Pietro Frank, Gypsy Davy
Place Of Birth: Wundagore Mountains, Transia
Marital Status: Married
Known Relatives: Magnus Erik Lennsherr (father, aka Magneto), Madga (mother, presumed deceased), Ayla (older sister, deceased), Wanda Lensherr (twinsister, aka Scarlet Witch), Lorna Dane (half-sister, aka Polaris), unnamed paternal grandfather (deceased), unnamed paternal grandmother (deceased), unnamed paternal aunt (deceased), Crystal (wife), Luna (daughter), Medusa (sister-in-law)
Group Affiliation: Avengers. Ally of X-Men, X-Corporation. Former member of Brotherhood Of Evil Mutants I, X-Factor II, Knights of Wungadore, Acolytes, (Android) Zodiac, Inhumans, Queen's Vengeance
Source Of Powers: Genetic mutation, further genetic engineered by High Evolutionary
Powers: He may be able to reach supersonic speeds now, thanks to the effects of the High Evolutionatry's mutagenic Isotope E. He is also able to send out a small burst of energy which freed him from his chains, superhuman reflexes and stamina
First Appearance: "Uncanny X-Men" #4
List Of Appearances;
"Uncanny" X-Men #4 (formed Brotherhood Of Evil Mutants I, conquered small nation of Santo Marco, fought X-Men, escaped)
"Uncanny X-Men" #5-7, 11 (Brotherhood Of Evil Mutants I)
Avengers Vol.1 #16 (joined Avengers)
Avengers Vol.1 #17
Avengers Vol.1 #30
Avengers Vol.1 #36-37
Avengers Annual 1
Avengers Vol.1 #45 (with the Avengers fought Super-Adaptoid)
Avengers Vol.1 #47-49

Uncanny X-Men #45
Avengers Vol.1 #75
Avengers Vol.1 #104
Fantastic Four Vol.1 #131
Avengers Vol.1 #127
Fantastic Four Vol.1 #150 (wedding of Quicksilver & Crystal)
Giant-Size Avengers #1
Avengers Vol.1 #170
Avengers Vol.1 #176-177
Avengers Vol.1 #181-182
Avengers Vol.1 #185-188
Fantastic Four Vol.1 #240 (birth of Luna)
Vision And The Scarlet Witch Vol.1 #4
Vision And The Scarlet Witch Vol.2 #6
Vision And The Scarlet Witch Vol.2 #10
West Coast Avengers Annual 1 (with Android Zodiac fought West Coast Avengers)
West Coast Avengers Vol.2 #34
Fantastic Four Vol.1 #304
Fantastic Four Vol.1 #306
X-Factor #4 (flashback)
X-Factor Annual 2
Avengers West Coast Vol.2 #56-57
Avengers West Coast Vol.2 #60-62
Captain America Vol.1 #444
Uncanny X-Men #338

Avengers Vol.3 #1
Avengers Annual '99
(In flashback just after Onslaught, is one of the last active Avengers. Is upset about people using mutants as scapegoats for Onslaught.)
Marvel Knights: Spider-Man #2
Uncanny X-Men #443

Quiet Man
Real Name: Unrevealed
Occupation: Criminal mastermind
Other Aliases: None
Place of Birth: Unrevealed
Marital Status: Unrevealed
Known Relatives: None
Group Affiliation: Leader of own organization
Source of Powers: Unrevealed if any
Powers/Abilities: Unrevealed if any
First Appearance: Mystique #
History:
List of Appearances:
Mystique #13

Quigley, Will
Real Name: Will Quigley
Occupation: Working at Splay Week
Other Aliases: None
Place Of Birth: Unrevealed
Marital Status: Unrevealed
Known Relatives: None
Group Affiliation: None
Source Of Powers: None
First Appearance: Captain America Vol.1 #222
List Of Appearances:
Captain America Vol.1 #222 (meet Steve Rogers tells him about the Rogers family, claiming to be the godfather of Mike Rogers and a former classmate of Walt Rogers)

Quill I
Real Name: Unrevealed
Occupation: Professional criminal, subversive, terrorist, mutant rights activist
Other Aliases: None
Place Of Birth: Cleveland, Ohio
Marital Status: Single
Known Relatives: None
Group Affiliation: The Resistants
Source Of Powers: Genetic mutation
Powers: Able to fire qulls from body at will
First Appearance: Captain America Vol.1 #343
List Of Appearances:
Captain America Vol.1 #343 (captured by Captain America VI and Battlestar for failing to comply with Mutant Registration Act, was freed by Resistants)
Captain America Vol.1 #346 (now member of Resistants, joined them in freeing Mentallo from authorities)
Fantastic Four Vol.1 #335 (Acts Of Vengeance; compelled by Dr. Doom robot to join Plantman in attack on Fantastic Four at Congressional hearing, became entangled in Plantman's vines and was captured)

Quinn
Real Name: Quinn (first name unrevealed)
Occupation: Scientist
Other Aliases: None
Place of Birth: Unrevealed
Marital Status: Unrevealed
Known Relatives: None
Group Affiliation: None
Source of Powers: None
First Appearance: Excalibur Vol.1 #66
List of Appearances:
Excalibur Vol.1 #66 (flashback, studied Katherine Pryde with Ahab; later, met with Ahab concerning his mission to extract Rachel Summers from the 20th century)

Qu'Lar
Real Name: Qu'Lar
Occupation: Mercenary
Other Aliases: "Qu'Lar the Massive"
Place of Birth: Unrevealed
Marital Status: Unrevealed
Known Relatives: None
Group Affiliation: None
Source of Powers: Bionic reconstruction
Powers: Superhuman strength
First Appearance: Avengers Annual 7
List of Appearances:
Avengers Annual 7 (among army of Thanos' mercenaries, fought the Beast, defeated by Captain Mar-Vell)

Quons
See: Appendix, Alien Races, Quons