Click To Help Darkseid!
Darkseid has declared that this article requires immediate Cleanup in order to meet a higher standard.
Help improve this article by improving formatting, spelling and general layout - least it fall victim to an Omega Effect

Stop hand


Sven and Harlan Kleinstock

Eric Kleinstock 01

Eric Kleinstock


The Kleinstocks were a set of triplets that are comic book fictional characters, and are mutant supervillains, in the Marvel Comics universe. The three brothers' names are Harlan, Sven, and Eric, and they were created by Scott Lobdell and Brandon Peterson and first appeared in Uncanny X-Men #298 (March 1993).


In their first mission with the Acolytes, they were sent along with Cargill and Carmella Unuscione to kidnap a young mutant. While attempting the kidnapping, they murdered Sharon Friedlander, a former staff member at Charles Xavier's School for Gifted Youngsters.

In the moment before she died, Sharon managed to send a psionic cry for help to Xavier. Based upon this, Xavier sent a squad of X-Men to investigate. During the battle between the Acolytes and the X-Men, Eric was shot and killed by Tom Corsi, another former staff member from Xavier's school. After discovering the mutant they were sent to kidnap had Down syndrome, the Acolytes abandoned their mission.

Despite losing their brother, Harlan and Sven continued to serve with the Acolytes. During the destruction of Avalon by Holocaust, the surviving two were among the Acolytes who evacuated to Earth with the X-Man Cyclops. They crash-landed in the Australian Outback, where they managed to get to the X-Men's former base of operations.

Once help arrived, they turned themselves over to the authorities. They were able to escape prison and rejoined the Acolytes under the leadership of Fabian Cortez.

These Acolytes were involved in attacks on Wundagore mountain. Sometime later, they were involved in an attack on the X-Mansion with a group of Acolytes. At the end of the battle, they asked for sanctuary with Xavier, which was denied. They eventually rejoined the Acolytes under Magneto's command, when he was given leadership over Genosha.

Television History

The Kleinstock Brothers appear in the Wolverine and the X-Men episode "Battle Lines". They are part of Magneto's Acolytes and are shown breaking mutants out of MRD Facility Delta in the south.


          X-MenMovieLogo Villains

Abomination | Adversary | Ahab | A.I.M. | Apocalypse | Arcade | Archangel | Arkon | Avalanche | Azazel | Badoon | Bastion | Batroc | Belasco | Beyonder | Blastaar | Blood Brothers | Bolivar Trask | Blob | Brotherhood of Evil Mutants | Bullseye | Cameron Hodge | Cassandra Nova | Children of the Vault | Clan Akkaba | Count Nefaria | Crossbones | Dark Beast | Dark Phoenix | Dark X-Men | Deadpool | Doctor Doom | Doctor Octopus | Dracula | Emma Frost | Exodus | Fenris | Freedom Force | Friends of Humanity | Galactus | Graydon Creed | Hand | Hela | Hellfire Club | High Evolutionary | Holocaust | Horsemen of Apocalypse | HYDRA | Impossible Man | Juggernaut | Kang | Kid Omega | Kingpin | Krakoa | Kraven | Lady Deathstrike | Legion | Leper Queen | Lilith | Living Monolith | Lizard | Loki | Madelyne Pryor | Magneto | Magus | Mandarin | Marrow | Masters of Evil | Master Mold | Mesmero | Mikhail Rasputin | Mister Jip | Mister Sinister | Mojo | Mole Man | Morlocks | Moses Magnum | Mutant Response Division | Mystique | N'Astirh | Nanny | Nekra | Neo | Nimrod | Nitro | Obnoxio the Clown | Omega Gang | Omega Red | Onslaught | Orphan-Maker | Ozymandias | Pandemonia | Phalanx | Pilgrimm | Predator X | Proteus | Psycho-Man | Purifiers | Pyro | Quicksilver | Reavers | Red Ghost | Red Skull | Rhino | Right | Rogue | Sabretooth | Sat-Yr-9 | Sauron | Savage Land Mutates | Scarlet Witch | Sebastian Shaw | Selene Gallio | Sentinels | Serpent Society | Shadow King | Shadow Xavier | Shocker | Silver Sable | Silver Samurai | Simon Trask | Skrulls | Spiral | Stranger | Stryfe | Stephen Lang | Sublime | Sugarman | Super-Adaptoid | Supreme Intelligence | Toad | Trevor Fitzroy | Typhoid Mary | Tyrannus | Unus | Vulcan | Wendigo | William Stryker | Xemnu | Xorn

X-Men: Brotherhood of Mutants (Magneto, Mystique, Sabretooth & Toad) | Pyro
X2: William Stryker Jr. | Lady Deathstrike | Jason Stryker | Brotherhood of Mutants (Magneto, Mystique & Pyro)
X-Men: The Last Stand: Brotherhood of Mutants (Magneto, Dark Phoenix, Pyro, Juggernaut, Multiple Man & Mystique) | Omega Gang (Callisto, Psylocke, Quill, Arclight, Avalanche, Spike, Glob Herman & Phat) | Archangel
X-Men: First Class: Hellfire Club (Sebastian Shaw, Emma Frost, Azazel, Angel Salvadore & Riptide) | William Stryker Sr. | Magneto | Mystique
X-Men: Days of Future Past: Trask Industries (Bolivar Trask, William Stryker Jr. & Sentinels) | Magneto | Mystique | Toad | Horsemen of Apocalypse (Apocalypse)
X-Men: Apocalypse: Ashir En Sabah Nur/Horsemen of Apocalypse (Apocalypse, Magneto, Psylocke & Archangel) | Dark Phoenix | Mystique | William Stryker Jr. | Blob
Dark Phoenix: Dark Phoenix | D'Bari (Vuk & Jones) | Brotherhood of Mutants (Magneto & Selene Gallio) | Mystique

Community content is available under CC-BY-SA unless otherwise noted.