Azula (Avatar: The Last Airbender) generating electricity.
Iroh (Avatar: The Last Airbender) generating electricity.
Gwen Tennyson (Ben 10: Ultimate Alien) using the lightning spell, Tempestus Impaetus, to defend herself from Ultimate Kevin.
Ultimate Kevin (Ben 10: Ultimate Alien) possesses Brainstorm, AmpFibian ,Dr. Viktor and Ultimate Aggregor's electrokinesis.
Ultimate Aggregor (Ben 10: Ultimate Alien)
Omniverse Kevin (Ben 10: Omniverse) possesses Feedback and Shocksquatch's electrokinesis.
Kevin 11,000 (Ben 10) possesses Galvanic Mechamorph's electrokinesis.
Bomberman (Bomberman 64: The Second Attack) detonating a Lightning Bomb.
As he grows more and more powerful, Doomsday (DC Extended Universe) generates massive discharges of electricity.
Garth Ranzz/Livewire/Lighting Lad (DC Comics) gained electrical abilities after being hit by Lightning Beast of Korbal.
Ayala Ranzz/Lightning Lass/Spark (DC Comics), twin sister of Lightning Lad/LiveWire.
Virgil Hawkins/Static (DC Comics)
Leslie Willis/Livewire (Superman The Animated Series/DC Comics)
Virgil Hawkins/Static Shock (Static Shock/DC Comics)
Barry Allen, the Flash (DC Comics)
Livewire (Arrowverse/DC Comics)
Watt (Paper Mario) can generate powerful electricity.
Thanks to the power of the Rumble Rumble Fruit/Goro Goro no Mi, Enel (One Piece) became a Lightning Human which allows him to generate and create an endless amount of electricity.
Trafalgar D. Water Law (One Piece) can generate a powerful electrical surge...
...via his Counter Shock technique.
Minks (One Piece) generating their Electro ability.
Mikoto Misaka (A Certain Magical Index) can generate as much as 1,000,000,000 volts.
Kanon Ozu (Coppelion) had an eel gene inserted into her, allowing her to generate and control electricity.
Jackie Chun (Dragon Ball) using his Bankoku Bikkuri Shō to generate about 20,000 volts of electricity.
Electrivire (Pokémon) can generate electricity for attacks like Thunder Punch.
Fu Chi'en (Tenjho Tenge) can draw electricity from the earth and utilize it as he wants, so long as his feet are rooted to the earth.
Sasuke Uchiha (Naruto) generating his Lightning/Raiton chakra...
...infusing it into his blade to enhance its cutting ability.
Hitomi (Code:Breaker) generating electricity.
Toki (Code: Breaker) using electromagnetism to create electricity.
Thor Odionson (Marvel Comics), the God of Thunder.
Max Dillon/Eletcro (Marvel Comics) possess the ability to bodily generate electrostatic energy which he could release or harness for a number of effects.
Noriko Ashido/Surge (Marvel Comics)
Danielle Blunt/Aftershock (Marvel Comics)
Victor Mancha (Marvel Comics)
Elle Bishop (Heroes) generating electricity.
Sylar (Heroes) generates electricity to regain control over his body from "Nathan".
Elle (Heroes) teaches Sylar how to use her ability.
Jin Kazama (Tekken Series)
Dash Gardiner (Witches of East End) electrocutes man.
Krell (Charmed) shooting electricity.
Garnet (Steven Universe) generating electricity to charge a car battery.
Zapfish (Splatoon) are used by both the Inklings and the Octarians as a source of renewable power.
The Great Zapfish (Splatoon) generates enough electricity to power the entire city of Inkopolis.
Denki Kaminari's (My Hero Academia) quirk "Electrification" allows him to generate electricity from his body.
Galian's strongest ÄRM, Guardian ÄRM, Torpedine (Marchen Awakens Romance) is said to be able to generate the most deadly lightning.
As a god of lightning, Baal (The Wicked + The Divine) has power over lightning and electricity...
...including using it for deadly force.
Having possessed his powers for decades, Kessler (inFamous) has a near unlimited reserve of electricity, not needing to recharge during battle.
Yellow Diamond (Steven Universe) can generate an electrical force that can destabilize a gem's form.
Sailor Jupiter (Sailor Moon) calling forth Lightning.
Barry Allen's (The Flash Tv Series) connection to the Speed Force causes his body to generate massive amounts of electricity.
Johnny Ohm (Marvel: Rise of the Imperfects)
Elle (Heroes) blasting electricity at Sylar
Electris(Aldnoah.Zero) can generate an electric field from it Aldnoah Drive allows it to burn all enemies ...
...while being immune to any projectiles with lower electrical potential
Helectrix (The Incredibles)
Spaceman KISS (Scooby Doo and KISS and rock and roll mystery)
Snoke (Star Wars) using Force Lightning to subdue Kylo Ren.