Devlin Levin is the future son of Kevin 11,000. Who becomes best friends with Ken Tennyson.

Devlin profile.png

At first he hung out with Ken doing some cool and dangerous stuff in the city. Then he betrayed Ken and used him to break his father out of prison and then Kevin threatens to kill Ken and Max Tennyson. Devlin tells his father they've done enough and then Kevin double-crosses his son and proceeds to kill Ken and Max. Ben 10,000 luckily makes it in time to stop Kevin and he mutates and proceeds into a battle with him and Ken. Devlin later on angered by his father's betrayal helps Ken and Ben defeat him by imprisoning him. He says goodbye but then Max offers him to join their family and he agrees.

          Ben 10 logo.png Heroes

Main Heroes
Ben Tennyson | Gwen Tennyson | Max Tennyson | Kevin Levin | Rook Blonko

Allies
Azmuth | Professor Paradox | Cooper Daniels | Manny Armstrong | Alan Albright |

Original Series Aliens
Heatblast | Four Arms | Diamondhead | Ripjaws | Upgrade | Ghostfreak | Stinkfly | Grey Matter | Wildmutt | Cannonbolt | Wildvine | Upchuck | Ditto | Blitzwolfer | Snare-oh | Frankenstrike | Eye Guy | Way Big

Alien Forces/Ultimate Alien Series Aliens
Swampfire | Chromastone | Humungousaur | Spidermonkey | Echo Echo | Big Chill | Brainstorm | Jetray | Alien X | Lodestar | Clockwork | Rath

Omniverse Aliens
Feedback | Gravattack | Kickin Hawk | Atomix | Astrodactyl | Bullfrag | Crashhopper | Pesky Dust | Freezelizard | Shocksquatch | Buzzshock | Whampire

Reboot Series
Ben Tennyson | Gwen Tennyson | Max Tennyson | Kevin Levin

Reboot Series Aliens
Heatblast | Diamondhead | Four Arms | Grey Matter | XLR8 | Wildvine | Cannonbolt | Upgrade | Stinkfly | Rath | Humungousaur | Overflow | Gax | Shock Rock | Slapback | Glitch | Jetray

Others

Ultimate Forms
Ultimate Echo Echo | Ultimate Humungousaur | Ultimate Swampfire | Ultimate Beast | Ultimate Big Chill | Ultimate Way Big |

Fusion Aliens
Atomic X | XlrArmBlastDiamond

Other Omnitrix Users
Ben 23 | No Watch Ben | Gwen 10

Other Characters
Spellbinder | Tetrax Shard | Sir George | Driba | Blukic | Lucy Mann | Charmcaster | Luhley | Julie Yamamoto | Kai Green | Jimmy Jones | Ken Tennyson | Clyde Fife | Fistina | Reinrassic III | Kwarrel | Skurd | Devlin Levin | Zed | Baz-El | Ship

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