Jack of Hearts (Marvel)
Real Name: Jonathan 'Jack' Hart
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Jack was able to generate bursts of energy in the form of concussive force, intense heat, or propelling force that enabled him to fly. He was also capable of absorbing energy from other sources. He possessed superhuman levels of healing and endurance and could survive unprotected in space. Although he only had normal intelligence, his thinking capacity was enhanced by a scanning device which gave his thought processes the speed and efficiency of a highly advanced computer. Jack also had superhuman strength.
Born to a scientist father and an extraterrestrial mother, Jack Hart unknowingly developed energy abilities that threatened to consume him. His father, concealing the truth from him, developed a radioactive inhibitor called Zero Fluid, which he claimed was a new form of fuel. When Philip was slain by agents of the criminal Corporation, Jack was accidentally doused with Zero Fluid, which served as a catalyst to activate his energy powers under limited control. Developing armor to contain his energies and calling himself the Jack of Hearts (in honor of his father's love for playing cards) Jack set out to avenge his father's death. This initially brought him into conflict with several heroes including the White Tiger. After slaying his father’s murderer, Jack was taken under the wing of Iron Man and became active as a hero. When he began losing control of his power level, he turned himself in to S.H.I.E.L.D., where he was isolated and trained.
Jack subsequently learned of his alien heritage and traveled to his mother's homeworld, Contraxia, where he re-energized the planet's dying sun. Unwilling to return to Earth, Jack remained in space for a while and was briefly captured by the Stranger and held prisoner on his Laboratory World. The Laboratory World prisoners were set free during an invasion by the Overmind and the Squadron Supreme, and Jack went back to Earth. Upon his return to Earth, Jack battled Quasar and fellow escapees the Presence and Starlight, and the Presence blew a hole in Jack's suit, causing him to retreat into space. Moondragon retrieved him from space, revived him, and mentally forced him to battle Kismet. After he escaped Moondragon's control, Jack set out for space again.
Jack sought out the Silver Surfer‘s aid in controlling his powers and Jack received an improved set of alien armor on the Anvil prison planet where he helped the Surfer battle Nebula and Gaetar. A short time later, he was captured by the powerful Tyrant along with Thor‘s oath-brother Beta Ray Bill, the leader of the Imperial Guard, Gladiator, alien warrior woman Ganymede, and former Heralds of Galactus, the Silver Surfer, Terrax, and Morg (the latter of which was Galactus' Herald at the time). All except Morg managed to escape from Tyrant, and Jack became a close ally and lover of Ganymede.
Later, Jack encountered a group of Avengers in space and was involved in a conflict between the Avengers and the Infinites. Jack accompanied them back to Earth, coming into conflict with the alien Ruul (who were secretly just a mutated faction of the Kree) when they plotted to turn the Earth into a prison planet for inter-galactic criminals. After this conflict, he accepted the invitation to join the Avengers. Unfortunately, remaining on Earth required him to subject himself again to periodic isolation, this time for fourteen hours a day. Growing tired of such restraints, Jack allowed himself to explode due to a buildup of his energy, but not before saving Ant-Man‘s daughter Cassandra Lang from a child-killer. He was believed to be dead for a time but apparently returned when the Scarlet Witch went insane (though his zombie-like form might have been an apparition created by the Witch) and his body exploded again, killing Scott Lang in front of the Avengers' Mansion.
First Appearance: The Deadly Hands of Kung Fu (1974) #22
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View a chronological listing of this character's appearances
#32 Avengers Forever (1998)
- 'Behind the Masque!'#35
- 'Interstellar Intrigues'#36
- 'No Rest For The Weary'#37
- 'Scorched Earth'#38
- 'Above and Beyond'#43
- 'Global Presence'#44
- 'Down Among the Dead Men!'#45
- 'Life During Wartime'#46
- 'Absolute Mastery'#48
- 'War Plan "A"'#50
- 'Book of Revelations'#52
- 'Counter Attack'#53
- 'The Last Castle'#54
- 'A Good Day to Die'#55
- 'The Last Farewell'#56
- 'Lo, There Shall Come... an Accounting!'#57
- 'World Trust, Part 1: New Alliances'#58
- 'World Trust, Part 2: Assembled'#59
- 'World Trust Part 3: Friends & Enemies'#61
- 'The Powers That Be!'#62
- 'Broken Hearts'#65
- 'Panic Attack'#66
- 'The Great Escape'#70
- 'The Great Escape'#73
- 'The Search for She-Hulk part 2: Savage Attack'#75
- 'The Search for She-Hulk part 4: With Friends Like These...'#76
- 'Full House'
#12 Avengers Infinity (2000)
- 'Avengers Assemble!'
#1 Avengers: The Children's Crusade (2010)
- 'Lost in the Stars...'#2
- '...Naught But Ants!'#3
- 'They Walk Among the Stars!'#4
- 'The Hand of the Infinites!'
#2 Captain America (1968)
- 'A Contest of Champions'#4
- 'The Brave...and the Bold'
Captain America (1998)
#47 Captain America: Red, White & Blue (2002)
- 'America Lost Part III of IV'#48
- 'America Lost Part IV of IV'#50
Cosmic Powers (1994)
Cosmic Powers Unlimited (1995)
Fantastic Four Roast (1982)
#1 Fun and Games Magazine (1979)
- 'When Titans Chuckle!'
Incredible Hercules (2008)
Infinity Abyss (2002)
Iron Man (1968)
#102 JLA/Avengers (2003)
- 'DreadKnight, And the Daughter of Creation!'#103
- 'Run For the Money!'#104
- 'Every Hand Against Him!'#106
- 'Then There Came a War!'#107
- 'And, In the End...'#108
- 'Growing Pains!'#109
- 'Sojourners Through Space!'#111
- 'The Man, the Metal, and the Mayhem!'#112
- 'Moon Wars!'#113
- 'The Horn of the Unicorn!'
#1 Marvel Age (1983)
- 'A Journey Into Mystery'
Marvel Encyclopedia (2014)
Marvel Premiere (1972)
#44 Marvel Super Hero Contest of Champions (1982)
- 'The Jack of Hearts!'
#1 Marvel Team-Up (1972)
- 'A Gathering of Heroes! Chapter 1'
#134 Marvel Two-In-One (1974)
- 'The Boy's Night Out!'
#48 Marvel Universe: The End (2003)
- 'My Master, Machinesmith!'
#1 Marvel Zombies Supreme (2011)
- 'The Cure'
#2 Maximum Security (2000)
- 'Strange Visitor'#3
- 'Heart of a Hero'#5
#2 Power Man and Iron Fist (1981)
- 'A World Of Hurt'#3
- 'Whatever The Cost!'
#73 Quasar (1989)
- 'Wraith, Color Or Creed'
#15 ROM (1979)
- 'Death Watch'#19
- 'Prolog: Refugees'#20
- 'Prolog II: The Stalking Horse'#27
- 'From Here to Maternity'#28
- 'Mating Dance'#29
- 'Having Her Baby!'
#12 Shame Itself (2012)
- 'Heart Attack'#15
- 'A Wedding!'
#11 She-Hulk (2005)
- 'Imbalance of Power'
#1 Silver Surfer (1987)
- 'Many Happy Returns'
Silver Surfer: The Enslavers (1990)
The Avengers (1963)
The Deadly Hands of Kung Fu (1974)
The Defenders (1972)
#62 The Incredible Hulk (1968)
- 'Membership Madness!'#63
- 'Deadlier By the Dozen!'#64
#213 The Jack of Hearts (1984)
- 'You Just Don't Quarrel With The Quintronic Man!'#214
- 'The Jack of Hearts is Wild!'#278
- 'Everybody Loves a Parade, Right?'
#1 The Last Defenders (2008)
- 'Murmur of the Heart..!'#2
- 'Heart to Heart'#3
- 'Heartbreak !'#4
- 'Heart Attack'
#3 The Marvel Encyclopedia (2006)
- 'The Movement You Need'
HC The Official Handbook of the Marvel Universe (1983)
- 'The Marvel Encyclopedia'
#5 The Official Handbook of the Marvel Universe Deluxe Edition (1985)
- 'H-J: From Hangman to Juggernaut'
#6 The Official Handbook of the Marvel Universe: Master Edition (1990)
- 'Human Torch to Ka-Zar'
The Official Handbook of the Marvel Universe: The Avengers (2004)
The Order (2002)
#5 The Spectacular Spider-Man (1976)
- 'Blinded By Science'
#9 Thor (1998)
- '...Like A Tiger In The Night!'#49
#57 What If? Avengers Disassembled (2006)
- 'Storm Clouds Gathering'
- 'What if the Scarlet Witch Hadn't Acted Alone?'
Avengers (Marvel)(01 - Original Team)
Defenders (Marvel)(01 - Original Team)
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