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Jemm is an antagonist in the television series Supergirl. A prisoner of the D.E.O., he managed to escape during an earthquake.

He was portrayed by Charles Halford, who also voiced Gorilla Grodd in Injustice 2.

History[]

Jemm was one of the most ruthless convicts ever sent to Fort Razz in the Phantom Zone. Eventually, he and all other prisoners escaped when Fort Razz crashed onto earth. At one point he was captured by the D.E.O. and imprisoned at their base. To countereffect his psychic abilities, the D.E.O. devices special headband inhibitors and imprisoned Jemm in a special glass cage which removed his powers.

At one point, a huge earthquake stuck National City. The temporary power outage allows Jemm to flee his cage. The D.E.O. seals the base, trapping themselves inside their base with Jemm. While director Henshaw and two agents try to find Jemm, the psychic ambushes them with his powers and kills the two agents. Henshaw manages to return to the control room where the rest of the D.E.O. agents are bunkered up. He tells them that both inhibitors were destroyed during Jemm's attack. As Jemm used his psychic abilities to read the mind of one of the deceased agents, he knows everything there is to know about the D.E.O. base, including how to open the cells of the other kryptonian convicts.

Not trusting Henshaw, agents Danvers and Donovan head out themselves to recapture Jemm. While walking past the corpses of the two agents, they find that despite Henshaw's assurances the inhibitors are still working. While trying to take one of it, Donovan is psychically attacked by Jemm who orders him to attack Danvers. However, Donovan struggles and tries fighting Jemm. Not knowing how long he can fight off Jemm's influence, Donovan tells Danvers to run.

Danvers goes on alone, eventually meeting Henshaw. Both are contacted by Donovan who wants to regroup with them, but Henshaw is not fooled and answers that he knows that Jemm is speaking. Jemm then answers that they only delayed the inevitable and that he will free all prisoners and break through the shield around the base. After Jemm stops the contact, Danvers forces Henshaw to chain himself to the wall because she doesn't trust him anymore. After he has done so, Danvers contacts Jemm and tells him that he doesn't have to free the prisoners as she has the access code for the shield and will be waiting for him in the control room. Once Jemm arrives, Danvers shoots him into the chest with a machine gun as well as a shotgun, blasting the crystal off his head. Jemm then overpowers Danvers, but before he can kill her he is killed by Henshaw who attacks him from behind and breaks his neck.

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           Arrowverse Villains

Main Antagonists
Dark Archer | Edward Fyers | Deathstroke | Anthony Ivo | Ra's al Ghul | Matthew Shrieve | Damien Darhk | Baron Reiter | Prometheus | Konstantin Kovar | Ricardo Diaz | Emiko Queen | Keven Dale | John Diggle, Jr. | Reverse-Flash | Zoom | Savitar | The Thinker | Cicada (Orlin Dwyer & Grace Gibbons) | Bloodwork | Mirror Monarch | Speed Force | Godspeed | Deon Owens | Red Death | Negative Speed Force | Cobalt Blue | Kuasa | Benatu Eshu | Vandal Savage | Mallus | Neron | Lachesis | Bishop | Evil Gideon | Astra | Non | Lillian Luthor | Rhea | Selena | Reign | Agent Liberty | Lex Luthor (Earth-TUD25) | Gamemnae | Nyxlygsptlnz | Overgirl | Alice | Safiyah Sohail | Black Mask | Marquis Jet | Tobias Whale | Martin Proctor | Percy Odell | Gravedigger | Tal-Rho | Ally Allston | Bruno Mannheim | Dark Arrow | Monitor | John Deegan | Anti-Monitor

Secondary Antagonists
China White | Billy Wintergreen | Brother Blood | Isabel Rochev | Ruvé Darhk | Andrew Diggle | Conklin | Anarky | Talia al Ghul | Artemis | Ishmael Gregor | Tobias Church | Anatoly Knyazev | Cayden James | Joe Wilson | Dante | Grant Wilson | Trickster | Doctor Alchemy | Marlize DeVoe | Amunet Black | Vanessa Ambres | Joseph Carver | Deathstorm | Zaman Druce | Valentina Vostok | Atropos | Indigo | Silver Banshee | Colonel James Harper | Cyborg Superman | Thomas Coville | Morgan Edge | Otis Graves | Manchester Black | Eve Teschmacher | Red Daughter | Phil Baker | Margot Morrison | Rama Khan | Catherine Hamilton-Kane | Jonathan Cartwright | Chuck Dodgson | Hush | August Cartwright | Enigma | Tatiana | Russell Tavaroff | Poison Ivy | Lala | Syonide | Lady Eve | Kara Fowdy | Giselle Cutter | Helga Jace | Carson Williams | Sara Grey | Yuri Mosin | Leslie Larr | Zeta-Rho | Bizarro | Onomatopoeia | Agent Smith | A.M.A.Z.O | Despero

Minor Antagonists
Adam Hunt | Thomas Galen | Black Caesar | Constantine Drakon | Martin Somers | Jason Brodeur | Huntress | Frank Bertinelli | Ted Gaynor | Firefly | Count Vertigo | Al-Owal | Dollmaker | Mayor | Officer Daily | Milo Armitage | Clock King | Chase | Vertigo | Komodo | Cooper Seldon | Captain Boomerang | Danny Brickwell | Murmur | Joseph Cray | Cupid | Mina Fayad | Deathbolt | Phaedra Nixon | Thomas | Joyner | Double Down | Liza Warner | Calculator | Bug-Eyed Bandit | Janet Carroll | J.G. Walker | Derek Sampson | Scimitar | Hideo Yamane | Sean Sonus | James Edlund | Justin Claybourne | Kimberly Hill | Sam Armand | Sheck | Alex Faust | Nylander | Athena | Virgil | Beatrice | Red Dart | Kodiak | Silencer | Chimera | Wade Eiling | The Mist | Weather Wizard | Girder | Rainbow Rider | Pied Piper | Peek-a-Boo | Everyman | Clyde Mardon | Multiplex | Simon Stagg | Blackout | Clay Parker | Vincent Santini | Trickster II | Anthony Bellows | Dr. Light (Earth-2) | Killer Frost (Earth-2) | Deathstorm (Earth-2) | Geomancer | The Turtle | Tokamak | Atom Smasher | Sand Demon | Lewis Snart | Tar Pit | Reverb | Trajectory | James Zolomon | Griffin Grey | Rupture | The Rival | Mirror Master | Top | Plunder | Magenta | Shade | Clive Yorkin | Abra Kadabra | Heat Monger | Samuroid | Kilg%re | Gregory Wolfe | Matthew Norvock | Nergal | Black Bison | Dwarfstar | Prank | Crucifer | Laurel Lance (Earth-X) | Rag Doll | Jones | Goldface | Ultraviolet | Dr. Light | Sunshine | Mr. Blake | The Colonel | Jon Valor | Hawk-Beasts | Bud Ellison | Per Degaton | The Hunters | The Pilgrim | The Leviathan | Baron Krieger | Shogun | Lead Samurai | Quentin Turnbull | Henry Stein | Tabitha | First of the Fallen | Aleister Crowley | Vartox | Hellgrammite | Maxima | Reactron | Ethan Knox | Red Tornado | T.O. Morrow | Jemm | Dirk Armstrong | Bizarro-Girl | Toyman | Miranda Crane (White Martian) | Metallo | Scorcher | Roulette | Parasite | Phillip Karnowsky | Beth Breen | Rick Malverne | Zod | Bloodsport | Pestilence | Mercy Graves | Natalie Hawkings | Menagerie | The Hat | Midnight | Magpie | Executioner | The Rifle | Bruce Wayne (Earth-99) | The Detonator | Nocturna | Duela Dent | Mabel Cartwright | Johnny Sabatino | Tim Teslow | Joker | Victor Zsasz | Ethan Rogers | Candy Lady | Amygdala | Ellis O'Brien | Kilovolt | Cluemaster | Circe Sionis | Liam Crandle | Killer Croc | Professor Pyg | Will | Joey Toledo | Deputy Chief Cayman | Cleaners | Tori Whale | Eldridge Whale | Glennon | Steven Conners | Looker | New Wave | Shakedown | Heatstroke | Coldsnap | Instant | David Fuglestad | Thaddeus Killgrave | Reno Rosetti | Atom-Man | Cyber-Woman | Prometheus (Earth-X) | Quentin Lance (Earth-X) | Plastoids | Psycho-Pirate

Anti-Villains
Green Arrow | Deadshot | Amanda Waller | Nyssa al Ghul | Bronze Tiger | Ragman | Vigilante | Stanley Dover | Captain Cold | Gorilla Grodd | Killer Frost (Earth-1) | Heat Wave | King Shark | Time Wraiths | Black Siren | Solovar | Music Meister | Cassandra Savage | Nora Darhk | Astra Logue | Kayla | Maxwell Lord | Livewire | Master Jailer | Lena Luthor | Purity | Mxyzptlk | Psi | Malefic J'onzz | Mary Hamilton | Two-Bits | Painkiller | John Henry Irons | Lucifer Morningstar

Groups
Royal Flush Gang | League of Assassins | A.S.A. | H.I.V.E | Suicide Squad | Shadowspire | Demolition Team | Rogue Anti-Vigilante Task Force | Jackals | Ninth Circle | Longbow Hunters | Deathstroke Gang | Stillwater Gang | Legion of Doom | Project Cadmus | Children of Liberty | Morae | Crows Security | Wonderland Gang | False Face Society | Many Arms of Death | Leviathan | Black Hole | Mirror Duplicates | The 100 | Shadow Board | Masters of Disaster | Markovian Insurgents | Dominators | Shadow Demons | Intergang

See Also
Batwoman Villains | Black Lightning Villains | Flash Villains | Green Arrow Villains | DC's Legends of Tomorrow Villains | Supergirl Villains | Superman Villains

           Supergirl second logo Villains

Comics
Alphina | Anti-Monitor | Appex | Atomic Skull | Atrocitus | Barry Metznerr | Belinda Zee | Bizarro | Bizarro-Girl | Black Adam | Black Banshee | Black Flame | Black Lantern Corps | Black Mask | Blackstarr Blithe | Brainiac | Buzz | Carnivore | The Council | Chemo | Cheshire | Clayface | Clock King | Cyborg Superman | Dark Angel | Darkseid | Dark Supergirl | Decay | Delacore | Despero | Diasporans | Doctor Sivana | Dollmaker | Dominators | Doomsday | Emerald Empress | Eradicator | Female Furies | Felix Faust | The Gang | Giganta | Granny Goodness | Graviton Man | H'el | Hecate | Insect Queen | Indigo | Intergang | Killer Frost | Kryptonite Man | Lady Styx | Lena Luthor | Lesla-Lar | Lex Luthor | Livewire | Lobo | Maxwell Lord | Metallo | Mister Mind | Mongul | Mxyzptlk | Nasthalthia Luthor | Nightflame | Parasite | Penguin | Positive Man | Powerboy | Princess Zala Jor-El | Psi | Reactron | Red Lantern Corps | Reign | Rogol Zaar | Roho | Satan Girl | Selena | Shrapnel | Silver Banshee | Simon Tycho | Solomon Grundy | Sportsmaster | Splyce | Suicide Squad | Superboy-Prime | Superman Revenge Squad | Superwoman | Toyman | Twilight | Ultra-Humanite | Worldkiller-1 | Xenon | Zod

Movie
Selena | Bianca

Television
Season 1: Astra and Non's Army (Non, Astra, Indigo, Vartox, Hellgrammite & Maxima) | Maxwell Lord | Reactron | Livewire | Ethan Knox | Red Tornado | T.O. Morrow | Jemm | Dirk Armstrong | Bizarro | Toyman | Miranda Crane | Master Jailer | Silver Banshee | Hank Henshaw | Project Cadmus (Colonel James Harper)
Season 2: Queen Rhea | Project Cadmus (Lillian Luthor, Cyborg Superman & John Corben) | Scorcher | Roulette | Parasite | Dominators | Phillip Karnowsky | Livewire | Mxyzptlk | Music Meister | Beth Breen | Rick Malverne | Lex Luthor | Zod
Season 3: Worldkillers (Selena, Reign, Purity, Pestilence & Thomas Coville) | Morgan Edge | Bloodsport | Psi | Dominators | New Reich (Dark Arrow, Overgirl, Promethus & Quentin Lance) | Eobard Thawne | Red Tornado | Livewire | Lillian Luthor | Red Daughter
Season 4: Lex Luthor | Children of Liberty (Agent Liberty, Mercy Graves, Raymond Jensen & Natalie Hawkings) | Otis Graves | The Elite (Manchester Black, Pamela Ferrer, The Hat & Morae) | Hellgrammite | Monitor | John Deegan | A.M.A.Z.O. | Psycho-Pirate | Leviathan (Eve Teschmacher & Margot Morrison) | Red Daughter | Phil Baker | Lillian Luthor | Malefic J'onzz
Season 5: Leviathan (Gamemnae, Rama Khan, Tezumak, Sela, Andrea Rojas, Margot Morrison, & Eve Teschmacher) | Lex Luthor | Malefic J'onzz | Lena Luthor | Lillian Luthor | Anti-Monitor | Midnight | Shadow Demons | Toyman | Mxyzptlk | Worldkillers (Selena, Reign, & Thomas Coville) | Children of Liberty (Agent Liberty & Otis Graves) | Dominators
Season 6: Nyxlygsptlnz | Lex Luthor | Lillian Luthor | Otis Graves | Zulian Maletarians | Eve Teschmacher | Mxyzptlk | Leviathan (Gamemnae)

Video Games
Injustice: Superman | Brainiac | Wonder Woman | Black Adam | Nightwing | Cheetah

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