Ben 10 Fan Fiction Wiki

Gwen Tennyson

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Gwendolyn Tennyson
General Information
Species Human/Anodite
Age 10 (original series and Season 1 of Ben 10: The Journey)
17 (Ben 10: Heroics Unleashed and Ben 10: Ultimate Omniverse)
Ben 10: Protector of the Omniverse

18 (Ben 10: The Omniwars (Season 1)

19 (Ben 10: The Omniwars (Season 2-onward)

21 (Ben 71)

Affiliations Ben Tennyson
Kevin Levin
Max Tennyson
Rook Blonko
Occupation(s) Hero
College student
Powers and abilities
Abilities Mana Manipulation
Mana Absorption
Mana Detection
Heat Vision
Anodite Transformation
Astral Projection
Expert Martial Artistry
Enhanced Intelligence
Flight (Anodite form)
Size Alteration
(Anodite form)
Equipment Spell Book
Relatives Natalie Tennyson (mother)
Frank Tennyson (father)
Ken Tenyson (brother)
Ben Tennyson (cousin)
Carl Tennyson (uncle)
Sandra Tennyson (aunt)
Max Tennyson (grandfather)
Verdona Tennyson (grandmother)
Sunny (cousin) Ben Tennyson (cousin)
Alias Dweeb (Ben)
Doofus (Ben)
Lucky Girl (herself)
Lovely Gwen (Darkstar)
Gwenny (Natalie)
My Girl (Kevin)
Kiddo (Verdona)
Miss Perfect Princess (Sunny)
Gwendy (Sunny)
Cuz (Ben/Sunny)
Red (Argit)
Alternate Counterparts Gwen Tennyson (Dimension 54)
Voice Actor Meagan Smith (OS)
Ashley Johnson (AF, UA, OV)
First Appearance And Then There Were 10

Gwendolyn "Gwen" Tennyson is a Human/Anodite hybrid, Ben Tennyson's cousin and one of the main members of his team. She has "The Spark". 


In Ben 10: Protector of the Omniverse, she has her Alien Force Season 3 appearance, but the red shirt is blue and the sleeves are no longer folded. Her pants are shorter, and she has white socks with black shoes.

Gwen Tennyson4444

In POTO. Credit to The Awesome Jack

In Ben 10: Heroics Unleashed, she wears her Alien Force season 3 outfit, but the red shirt is blue.


In BTHU. Credit to Reo 54 and BrendanBass from DeviantART.

In Ben 10: Ultimate Omniverse, 17-year old Gwen has her Omniverse Season 1 appearance, but her freckles are gone and her skirt is now bright pink. Her socks are now red. 11-year old Ben has her Omniverse appearance, but with her Ultimate Alien outfit, but without stockings. She retains her white shoes. She has a cat symbol on the chest of her red sweater.

Gwen For Ulti

In BTUO. Credit to Echoson

In The Troublesome Two, she has her Omniverse Season 1 appearance, but halfway through Season 1 of TTT, her blue sweater and white shirt are reversed.
Gwen Omniwars For Chill

Gwen Tennyson in The Omniwars

In Ben 10: The Omniwars, she has her Ultimate Alien appearance, but with her hair let out, much like season 1-2 of Alien Force.

In Season 1 of Ben 10: The Journey, she has her original series appearance, but she wears the clothes that she bought in Ben 10: Secret of the Omnitrix.

In Ben 10: Unbound , 16 year old Gwen has her Alien Force season 1-2 appearance but with her hair in a ponytail, taller and AF season 3 shirt. 11 year old Gwen has her Omniverse appearance but no freckles and the colors of her shirt are reversed. Her cat logo is different.

In Bellwood: The Animated Series, Gwen wears different outfits in most of the episodes but her signature outfit consists a blue shirt with a cat logo on her chest,white caprices, a blue hair clip and a pair of white shoes.

11 Year Old OV Gwen For Cannonboy (2)

Gwen in Bellwood: The Animated Series


Ben 10

In Ben 10,000 her alternate future self says she got her black belt years ago (probably referring to Alien Force) and it's come in handy many times. She has also shown an almost innate skill in using various complicated devices or objects, such as in the "What If?" episode Gwen 10, when Gwen gained the Omnitrix instead of Ben and proved to be far more adept in its use than he initially was, even being able to write her name with fire while Ben took a month to be able to do it (although she may be able to use it better because of her magical and Anodite powers because manipulating energy is natural for her).

She is depicted as snobbish due to her young girl attitude. Overall, her most notable skill is her magic.

Having within her what Charmcaster calls a "magical aura", Gwen is capable of using various magical artifacts, charms, talismans and spells. When using the magical, luck-giving Charm of Bezel, she was able to activate it instinctively, whereas Hex did or could not. Later on, when she takes and uses his staff, she was able to make it fire a yellow-colored energy blast (according to Charmcaster), only someone who was a master majiton could fire the septer.

Ben 10: Alien Force

In the sequel series, Ben 10: Alien Force, fifteen-year-old Gwen has grown into an arrogant, mad teenager, and she and Ben get along much better are no longer openly hostile towards one another (most of the time). In this series during seasons 1-2, Gwen wears a plain, white shirt, loosely buttoned blue sweater, a black skirt with black tights, her hair is much longer and darker and her eyes are much darker as well. Gwen is now a black belt (taking classes in Tae Kwon Do, according to dialogue in Simple), but tends to favor using her powers. She is able to create energy constructs for nearly any purpose, usually creating platforms to levitate herself (and others), beams to grab enemies, circular blasts to knock enemies back, projecting beams from her eyes that seem to simulate heat vision, and opening up interdimensional portals. In Ben 10,000, her futur
e self is able to create time portals. She also has a wide range of other loosely defined supernatural abilities, such as dowsing, limited telepathy, and clairvoyance. In the episode Everybody Talks About the Weather, Kevin says she gets her powers from her alien bloodline, but she refuses to believe him. Little does she know that she would realize he was right in What Are Little Girls Made Of? Her powers are revealed to be alien in origin; her grandmother, Verdona, is an energy being known as an Anodite and surprisingly she is the only descendant of hers who inherited Verdona's powers. Verdona tells Gwen that what she and others originally thought of as "magic" was actually the manipulation of mana, a substance of magic - making Anodites a magic-wielding race. Verdona offers to take Gwen to her home planet and train her in the mystical ways of the Anodites, but Gwen prefers to remain on Earth with Ben and Kevin. She hates being called an "energy being", referring to her Anodite heritage. In the episode, In Charm's Way, it's implied that highly gifted humans like Charmcaster can also be trained to manipulate mana.

In episode eleven of the second season, Unearthed, an alien creature is able to see her as an Anodite, in which she looks exactly like her grandmother's true form, but slightly shorter. In the two-part season two finale War of the Worlds when Kevin was threatened by a Highbreed commander, she assumes her dormant Anodite form for the first time and easily defeats the commander with an exceedingly strong powerful burst of pure pink glowing energy. She was almost overwhelmed by her own power before Kevin snaps her out of Giant Vigo.

Gwen in Season 3 of Alien Force, during the course of the series she has developed a romantic relationship with Kevin. They have also been shown to have arguments, usually starting with Gwen always trying to force Kevin to "Ask her out." and him always answering "Don't push me." In the episode Fool's Gold, Kevin appears to be avoiding her because he is ashamed of his recent mutation due to accidentally absorbing a massive feedback pulse as a result of trying to hack the Omnitrix. She was unaffected by the blast because she put an energy shield around herself. Kevin gives her a locket of the two of th
185px-Gwen's Mana Pad
em when he was in his human form, asking her to remember him as he was. Gwen says she doesn't care what he looks like, and he replies "But I do". In the two part season three premiere, Vengeance of Vilgax, Ben and Gwen seem to have revived their infamous rivalry from the original series, in part due to Ben's cockiness and inflated ego. In the same episode, Gwen pours a smoothie over Ben's head, and he nearly returns the favor. Despite their rivalry, they both still have a strong bond, visible in the episode In Charm's Way, when Ben defends Gwen and informs Kevin that she ha

Gwen vs Sunder

s been spending all of her spare time in order to find a cure for Kevin's condition. It is shown in both Vengeance of Vilgax: Part 2 and Inferno, respectively, that Gwen suffers from both arachnophobia and claustrophobia.

Unlike the original series, Gwen has worn other costumes besides her usual clothing. In the episode Time Heals, it was revealed that Gwen kept her Lucky Girl costume. In What Are Little Girls Made Of? Gwen is shown to have a white bikini. In Charm's Way, she has a black bikini. In The Con of Rath, she is shown wearing another one piece black bikini, pink flip flops, a hat, sunglasses, and a pink towel skirt. She also has a karate suit. In Save the Last Dance, Gwen was seen wearing a formal outfit (a white strapless prom dress).She has kept and worn her Lucky Girl costume, which is now bigger with Gwen being fifteen.

Ben 10: Ultimate Alien

In the sequel that takes place a hundred years later, Gwen is now sixteen years old. Her wardrobe has altered once again, now being her old outfit from the first two seasons of Alien Force, but instead of a plain dark blue shirt it is now dark red and she also keeps her high ponytail from the third season. In Hit Em' Where They Live, Zombozo and other villains teamed up to take revenge on the Tennysons, and kidnapped Ben's mom, Sandra. Enraged, Gwen released her dormant, inner Anodite for the second time since War of the Worlds: Part 2.Whilst Zombozo trembled with fear, Gwen began to grow to a huge height, promising that if one of his teammates (and other notable villains) even bumps into a their families on the street, she would come for them. Petrified, Zombozo screamed off-screen and Gwen saved Sandra. When Kevin asked what happened to Zombozo, she simply said they cane to and understanding.


Gwen in Ledger Domain.

In Video Games, she tries out for her driver's license, earning it in the end. In the early episodes of the series, Gwen and Kevin seem to be bickering constantly. Gwen's magenta-violet-purple shields look less see through and have a different design than in Ben 10: Alien Force. Perhaps the color intensifies to much brighter shades of pink, magenta, and fuchsia as she grows stronger and more powerful.


Gwen with Ultimate Wildmutt.

In the episode Hero Time, it is shown that Gwen gets very jealous when Jennifer Nocturne starts flirting with Kevin after he saved her life. And Kevin doesn't seem to mind. Kevin also protected Jennifer a lot, over the course of the episode. For example; When Overlord shot an energy blast at them Kevin put his arms around Jennifer to protect her from the energy beam, even though Gwen put up a magenta-pink shield around them. Gwen eventually lost her temper and threatened Jennifer that she would, 'peel her like a grape.'

Crisis (Franchise)

See Gwen Tennyson (Earth-101)

Ben 10: Unbound

She will appear in most episodes.

Ben 10 : Cosmic War

Gwen CW

Gwen Tennyson is 20 years old girl lives in bellwood. She has the powerful human mana power on Earth.


After a long fight with FX1 in the first part of The new force, FX2 took them to his station.


her appearance is from the first episode : the new force part :1

as planned Gwen will be in all the episodes

Ben 10: Reloaded

In the alternate sequel series, Ben 10: Reloaded,Thirdteen-year-old girl and still depicted. She has crush on Randy (before Gwen and Kevin are couple). Her powers are still magic. In the end, Gwen will move on without him and became nice with Ben.

Ben 10: Meta Menace and T-Rex: A New Generation

In Meta Menace, she appears as Kevin's wife and is about 7, 8 or 8 1/2 months pregnant for his baby.

In A New Generation, their children, Rosa and Devin are on Rex's team. Unlilke MetaBen and MetaJulie, Gwen and Kevin don't play a passive role, they are just re-occurring characters.

Ben 10: Forever Heroes

She is 18 years old and she is still learn with her cousin.

Ben 10: Infinity

She now has her first OV appearence but she has her OV anodoite form. She still wears glasses.

Albedo 10


Season 1

Season 2

Ben 10: Alien Universe

Main article: Gwen Tennyson/Alien Universe

In Ben 10: Alien Universe, she was featured in an episode much like that of the original Ben 10 series one "Gwen 10," titled "Gwen 10: Alien Force" where she received the Omnitrix much akin to how Ben received in the first episode of this series.

She appeared in every episode, with the exception of episode 5, the first part of the "Homesick Trilogy." A DNAlien had kidnapped her in this episode and she appeared again in the next episode, "Feel My Ghostly Wrath," where she aided in Ben foiling Zs'Skayr's plots with a DNAlien believed to be behind kidnapping Gwen. She was an important character in this arc.

In the movie, Ben 10: Hidden Universe, she would not appear until later in the episode when she finds her way to Ben, Cad, and Traxel who are venturing the Hidden Universe.

In Back in Action: Alien Universe, she is featured as a main character, and so far, two alternate counterparts of her have been shown, one from the alternate future (see Limited), and one from an alternate timeline where she wields the Omnitrix and found it, dubbing herself, "Gwen 20" (see Ten Plus Twenty). The Gwen 20 timeline is a derivitive of the Gwen 10 timeline, and in itself, the events of Gwen 10: Alien Force are referenced by Ben when he mentions Gwen 10.

The Gwen 20 timeline has one of its own alternate futures, where Gwen gave birth to Jennifer-Mercedes Tennyson, was married by age 27, and went missing at age 39, when her daughter 12. Her husband died shortly after Jen was born, during the war against D-Soft. The future Gwen went by Gwen 20,000 in her "golden years," which lasted up until she became pregnant at age 26 with Jen. Jen and her friends were met, but Gwen has not yet appeared.

Ben 10: Maximum Heroes

Gwen is still one of the main characters in Ben 10: Maximum Heroes.

Ben 10: Bio Squad

Gwen still fights along side Ben and Kevin, but now also fights alongside Evan.

Adventures on Ben 10 Fan Fiction

It is unconfirmed if Gwen will actually appear in AoBTFF, but it is known that she is somewhere on Wikia.

Ben 10: Ultra Force

See:Gwen Tennyson/BTUF

Ben 10: Extreme

Gwen stays with Ben and Kevin to fight off the new threats to the galaxy.

Gwen Tennyson BTE

Ben 10: Omnitrix Unlimited

She is 18 and has just graduated from college. She wears her AF Season 3 outfit and appears in every episode, except for Ben Quest. Her Dimension 99 counterpart appears in 99 For A Change.

Bryce Bowman: Origins

When Bryce is assigned to fight a time monster(Time Trouble), Gwen is teamed up with him, by Max's request. After that, she becomes his crime-fighting partner.

Ben 10: A New Series

In BTANS she has he AF design, just he shirt is red. 


Jimmy 10

She was only mentioned in Jimmy 10 by Kevin.

Echo Echo Omnivurs Overwrite

She is one of the main characters in the real world.

Weird William

Gwen also appears in Weird William .

Gwen in 'Weird William'

Tennyson Force


Gwen In Tennyson Force

She is one of the main villians in Tennyson Force along with Kevin. She is really smart now and has curly hair instead of strait.

Rock Star Gwen. Weird.


She is Devlin's stepmother and also the mother of Talia Tennyson.Also she
GArbage Gwen

Gwen controlling mana in Ben 10: Garbage Force.

has now retired from being a plumber and lives with Devlin,Kevin and Talia in in the Fortress Of Mannatud

Ben 10: Garbage Force

She is one of the main protonagists. Her mana turns red and she now wears pink glasses.

Ben 10: Eternal Forms

See Gwen Tennyson/BTE

Flame 10

She's is apart of Flame's team, She's a suporting character.

Ben 52


Gwen in Ben 52

She is not Ben Tennyson's cousin in this reboot. She is a friend he meets on the road trying to find his parents who were kidnapped by the Plumbers. She is a sorceress, not a Anodite


Ben 10: Protector of the Omniverse

All episodes

Past/Future Selves

10-year old Gwen
11-year old Gwen
15-year old Gwen
42-year old Gwen

Alternate Selves

Ben 10: Heroics Unleashed


Past/Future Selves


Alternate Selves


Ben 10: Ultimate Omniverse

Past/Future Selves


The Troublesome Two

Ben 10: The Omniwars

Ben 10: The Journey


DZ: Omniverse

Ben 10: Alien destroyer

Ben 10: Multi Trixes
Main Characters
Ben Tennyson - Gwen Tennyson - Kevin Levin
Minor Characters
Max Tennyson - Azmuth - Albedo (after reforming) - Myaxx - Tyler - Tetrax - Sugilite - Carl Tennyson - Sandra Tennyson - Verdona Tennyson
Vilgax - Albedo (before reforming) - Aggregor - Zs'Skayr - Eon - Sunder - Paparo - Forever Knights - DNAliens - Nanochips - Zeno - Fich - Vulkanus - Kate Underlocke - Will Harangue - Jowser - Evil Ben - Rogue Appoplexian - Mr. Mann - Mrs. Mann - Ultimatron - Ohsmoss - Kevin 11,000
Original Aliens
LMN - Paperboy - The Ultimate Alien - 1-Up - Infinite Cannonbolt - Infinite Swampfire - Infinite Alien X - Ultimate Rath
Borrowed Aliens
Freaky Wizz (Weirdo) - The Punisher (Len) - Manaflow (Ancy) - Overflow (Dave) - Hammerhead (Dave) - Pelicarve (Bink) - Bubbles (Batking) - Water Linkz (Batking) - Het (Batking) - Ultimate Het (Batking) - Heavy Metal (Lumin8) - Blocked (Weirdo) - Techno-Halloween Man (Dave) - Superspeed (Dave) - Werewolf (Weirdo) - Attraction (Weirdo) - Shiftshaft (Ancy) - BenKraab ( - The Percolating Coffee Guy (Dan)
Ultimatrix - Omnitrix 2.0 - Manamatrix - Metalmatrix - Minitrix - All-Power-Trix - Evil Ben's Omnitrix - Planetary Connection
Season 1 Episodes
Return of Vilgax, Part 1 - Return of Vilgax, Part 2 - Ben? Who's Ben? - Back to the Future! - Dawn of the Squid, Part 1 - Dawn of the Squid, Part 2 - He's Back! - Ultimate Aggregor... Again - The Rise, but Not Fall, of Albedo - Zs'Skayr? - The Spookiest Finale, Part 1 - The Spookiest Finale, Part 2 - The Spookiest Finale, Part 3
Season 1 Reboot Episodes
Zs'Skayr Returns
Season 2 Episodes
Another Time Traveler - Ben Vs. Gwen - When Life Gives You LMNs... - A Visit From Fibrus - Eon's Army - A Different 10 - Another Omnitrix - Kevin Leaves - Knight of the Villains - The Other Return of Vilgax - Andromeda Trouble - BTMT Movie Season Finale Thingy!
Season 3 Episodes
Two New Crooks - Return of the Nanochips - Save Petropia! - Ultimate Kate, Part 1 - Ultimate Kate, Part 2 - More DNA Taken - Ben 10: Phineas and Ferb Style! - Is It Validus? - Super Tennyson Bros. - Return of Clancy - Dawn of... Evil Ben! Part 1 - Dawn of... Evil Ben! Part 2 - The Connection - 1-Up - Sweet Dreams - Connectivity - Playing With Mud - Say Goodbye to the Chips - The Beginning of the End, Part 1 - The Beginning of the End, Part 2 - Ben 10: Ultimate Crossover
Season 4 Episodes
Rise of Ultimatron, Part 1 - Rise of Ultimatron, Part 2 - Blast From the Past - Your Worst Nightmare - Ohsmoss - Big Fat Alien... Divorce? - The Escape - Operation: WOODCHUCK - Nuke on Steroids - Quicker Than Clockwork
Crossovers and Out-of-Season Specials
Tennyson Force: Multi Trixes
Video Games
Ben 10: Even More Cosmic Destruction - Ben 10 Multi Trixes: Escape From Eon! - Ben 10 Multi Trixes: The Game
Main Characters
Ben Tennyson | Gwen Tennyson | Kevin Levin
Supporting Characters
Azmuth | Paradox | Julie Yamamoto | Max Tennyson | Gordan Tennyson | Argit | The Vreedle Brothers | Sugilite | Manny Armstrong | Helen Wheels | Pierce Wheels | Cooper | Reinrassic III | Tetrax | Malron | Bivalvan | Galapagus | P'andor | Andreas| Ra'ad | Verdona Tennyson | King Anodyne | Jimmy Jones | Clara
Harper | Vilgax | Aggregor | Darkstar | Zs'Skayr | Albedo | Psyphon | Vulkanus | Black Knights | Darkstar's Team | Evil Gordan | Sunder | SevenSeven | Paparo | Eon | Clancy
Original Aliens
Forestfire | Drillpit | Windfall | NML | Acidrain | Atomix | Soundwave | Terrorstorm | Heavy Metal | The Ultimate Alien
Additional Aliens
XLR8 | Fourarms | Heatblast | Rath | Mudshifter | Humungousaur | Way Big | BenWitch | Paperboy | Silverock | Brainstorm | Fasttrack
Ultimate Aliens
Ultimate Big Chill | Ultimate Cannonbolt | Ultimate Echo Echo | Ultimate Humongousaur | Ultimate Spidermonkey | Ultimate Swampfire | Ultimate Wildmutt | Ultimate Paperboy
Evan Billion - Evan Levin - Kevin Levin - Rocket - Sharpoint - Billiontrix - Episodes
Main Villains
Man of Many Puzzles - Aqua Tick - Widemouth - Axeman - Ristego
Minor Villains
Drobot - Scarletose - Ockitalusion - Raydi'ation - Ho'par - Pyrece - Witor - Jetter - Utility
Evan Billion: F.I.N.D. Adventure Characters
F.I.N.D. - B.E.A.T. - Nanon - Indetal - Zkare - Fuge - Radius - Ben Tennyson - Gwen Tennyson - Kristy - Gus - Manny - Cristare - Mandy - Mandus
Billiontrix Aliens
Copy-Copy - Combinationer - Useless - Lightmeraction - Humanimate - Feet Balled - Emotion - Upside Up - Clawnormous - NME - Sportacus - Battlesuit - Edibility - Flat - Absorbo - Sound Sample - Crablaster - Manymachine - Stunner - Glider
SA - ABC - MLE - Esrever - Rhymer - NMA - Carton - Hammer - Lost and Found - Very Long - Greedusa - Clockboy - Pillows - Green Thumb - Hip - Splinterock - Darkclaw - Dynamice - EZ2C - Jackbammer
New 20
Insectosaurus - Brickerman - Elementree - Rockstar - Wall-It - Freakahouse - Fastfloat - RoboTian - Tosser - Boywen - Stickpunch - LMN8 - MPHinity - Skybird - Jigsaw - Axxident - Rollerboaster - Riptile - Raptile - Riptile-Raptile
Additional 6
Puffish - Fairy Tail - Clameleo - Z-Bunch - Dogface - Lurnit
F.I.N.D. Adventure Aliens
Terrock - Liquolizer - Tidalwave - Cryo Flio - Emergeter - Animild - Pyrology - Cannonall
Goppicent - Hydraquack - Janejare System - Dudle Gode - Janejare - Janejaren Meteor - N'Turr Janejare - Z'Richer Janejare - Morearth - Herta - Uns - Omon
Ben 10 & The Master Assassins | Crisis: Broken Days
Main Characters
Gwen Tennyson | Kevin Levin | Max Tennyson
Recurring Characters
Rad Dudesman | Magister Patelliday | Argit | Will Harangue | Professor Paradox | Azmuth
Ben Tennyson | The Master Assassins (Leader) | Rook Blonko
Ben 10 & The Master Assassins Episodes
Enter Assassins | The Dudesman Theory | The Hunt For The Illuminati | Breaking News | Real Targets | Right On Time | Guilty As Charged | The Osmosian Target | Mana of The Target | Crisis Begins
Crisis: Broken Days Season 1 Episodes
B | Good Knight | TBA | TBA | TBA | TBA | TBA | TBA | TBA | TBA | TBA | TBA | TBA
Earth-101 | Q&A


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