Plumbers (Classic)

The Plumbers is a secret organization that makes use of many high tech gadgets to protect their planet from various alien & paranormal threats. The Earth Plumbers were said to have officially disbanded shortly after Vilgax was defeated by Max Tennyson.

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A Plumber's Badge. With the intergalactic peace symbol

Original series

In the original series, the Plumbers are a secret government organization that protects the general public from any alien threat. Their main advesary was the alien warlord Vilgax, Max Tennyson (AKA Grandpa Max) was a member in his youth and was ultimately the one who defeated Vilgax. Most of the organization itself has disband, however a few of its members (like Max Tennyson & his relatives) remain in a semi-active capacity.

Max Tennyson is effectively forced out of retirement after Ben obtains the Omnitrix. Grandpa Max uses his experience as a Plumber (along with various Plumber gear & weapons) to aid his grandson against various foes, including his old enemy Vilgax.

In "Big Fat Alien Wedding", it is revealed that the Plumbers have been generations-long feud with alien race known as Sludge Puppies (or The Sludges). However, when a close-relationship was formed between Plumber Joel Tennyson (Max Tennyson's nephew) & female Sludge named Camille. A truce was forged as a result of their relationship, and their wedding was to be the first ever marriage between a mud alien & a human, and was meant to put an end to years of fighting. The bride's parents & ex-boyfriend (all Sludges) tried to stop the wedding, however they were defeated by the combined efforts of Camille & Tennyson's, and thus the two were married. Though Joel's parents (both of whom were Plumbers) were against the marriage at first, they later realize how unfairly they had treated Camille and finally accepted her as their daughter-in-law, thus putting an end to feud.

The Plumber's main base is located inside of Mt. Rushmore, where both the Null Void projector & the Sub-Energy are stored. In "Truth", the Null Void projector was stolen by Phil (Max Tennyson's former partner) as part of scam to profit off catching aliens he himself released, however his plan was thwarted by Max & Ben Tennyson. There also a base located within Fort Knox.

Both bases were later attacked by Driscoll the Forever King (an Ex-Plumber who join the Forever Knights) with the help of the Negative 10.

Ben 10: Race Against Time

An group of active Plumbers based Bellwood is introduced in the movie Race Against Time. They have a secret underground base where the "Hands of Armageddon" were kept. Ben Tennyson and Gwen Tennyson only came to the Bellwood base once. The groups main objective was to protect the Hands of Armageddon from Eon, which eventually entailed protecting Ben Tennyson from Eon (who wished to use the Omnitrix to transform Ben into a younger version of Eon, in order to use the Hands of Armageddon). It is likely they disbanded after Eon was defeated.

Alien Force

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Grandpa Max in A Plumber Suit

In this series, the Plumbers are revealed to an inter-planetary peace-keeping force, with both human & alien members. In "Darkstar Rising", it is revealed that all Plumber active on earth was officially ended after Vilgax final defeat at the hands of Ben Tennyson.

However Max Tennyson discovers that an alien race called the Highbreed and their minions the DNAliens, are up to no good and he warns his superior colonel, Magister Labrid (a fish-like alien) there is trouble brewing on Earth. The Magister quickly discovers Max has gone missing and mistakeningly tries to capture Ben & Gwen (unaware that they are his Grandchildren) believeing they are responsible. Upon discovering who they are, he asks for their assistance in discovering the reason for Max disappearence. The three of them manage to interupt an arms deal between the Forever Knights & the DNAliens, with Ben's old-rival, Kevin Levin (AKA Kevin 11) as the middle-man (or go-between). After a brief battle, they captured Kevin and convinced him to help them find out what was going on (Kevin decided to help as he had not been paid). They tracked the weapons back to one of the Forever Knights castles. During a battle with the Forever Knights, Magister Labrid is fatally wounded. He dying wish was for them to finish their mission and charged them with protecting the Earth from this new threat.

In "Everybody Talks About the Weather", it is revealed that Plumbers poses special badges (which resembles the Omnitrix face plate). There is also a practice where alien Plumbers who have inter-breed with humans, give their hybrid-offspring a Plumbers' Badge to prevent them being misstakenly arrested by other Plumbers. They are generally refered to as Plumbers' Kids.

In "Darkstar Rising", Ben, Gwen, and Kevin are forbidden to fight against the Highbreed threat by Magister Prior Ghilhil of the Plumbers, a lieutenant colonel who doubts the Highbreed are even as much of a threat as they claim. However, all three sides find themselves working together when Mike Morningstar, AKA Darkstar, captures all but Gwen to feed his powers. With the help of the DNAliens, Gwen frees her friends and Mike is captured while the Highbreed Lord and the DNAliens escape. In gratitude, Magister Ghilhil makes the team Honorary Plumbers so they can defend the Earth legally. He also mentions that Ben's Omnitrix can also represent a Plumber's Badge.

In the second season finale "War of the Worlds:Part 1" and War of the Worlds:Part 2" all of the plumber's children and helpers (including Max Tennyson) participate in the final battle agains the Highbreed and the DNAliens. Notably, Gwen, Kevin and Paradox warped into the former plumber base in Mount Rushmore to free their enemy Darkstar in order to participate in the battle.

As a result of Ben's defeat of Vilgax & neutalizing the Highbreed threat, as well as his status as Bearer of the Omnitrix, Ben holds a special status among the Plumbers ranks, even leading his own team.

At the end of War of the Worlds:Part 2, Max recruits a new team of Plumbers In-Training, with himself as both their leader & mentor. Max's Team later fights & is defeated by Max's old enemy, Vilgax in Force Vengeance of Vilgax: Part 1.

In Vendetta, it is revealed that Kevin's father, an Osmosian Plumber, sacrificed himself to save Max Tennyson & prevent the intergalactic criminal Ragnarok from destorying Earth's sun.

Known Plumbers

In Ben 10

Max Tennyson - (retired)
Joel Tennyson - (Max Tennyson's nephew)
Gordon Tennyson - (Max's brother and Joel's father)
Betty Jean Tennyson - (Joel's mother)
The Bellwood Plumbers
Pete Redbloom
Wes Green - (retired)
Constantine Jacobs - (deceased, Protector of Eon)
Xylene - (honorary member)

Expelled Plumbers

Phil - (Max Tennyson's ex-partner, Imprisoned in the Null Void)
Driscoll - (a Plumber who was expelled for stealing alien tech, later joined the Forever Knights and became the Forever King.)
Mike Morningstar - (evicted by Kevin)
Victor Validus - (rejoined in the second movie.)
Gorvan - A renegade Tetramand plumber who adandoned his galactic duty and started selling alien tech. Seen in Ben 10 Alien Force Video Game.

Redeemed Plumbers

Victor Validus - (a Plumber who was expelled by Max Tennyson for stealing mysterious alien chips, later revealed to be inert drones of the alien Hive. Before being expelled, he became host to the Hive Queen and was studying the Alien Chips to find a way to stop them, before he fell under the Queen's complete control. Was later freed from the Queen by Ben Tennyson & rejoined the Plumbers.)

Plumbers in Alien Force

Magister Labrid - (a fish-like alien and Magister of Planet Earth, deceased)
Magister Prior Ghilhil - (an alien with the rank of Magister Prior)
Max Tennyson - (semi-retired human Plumber, recruits a new team of Plumber's at the end of War of the Worlds:Part 2 with himself as their teacher & mentor. Was appointed as Magister of Earth sometime after "War of the Worlds".)

Active Plumbers

Ben Tennyson - (was made an honorary member at the end of "Darkstar Rising")
Gwen Tennyson - (was made an honorary member at the end of "Darkstar Rising")
Kevin Levin - (was made an honorary member at the end of "Darkstar Rising")

Plumbers Killed in the line of Duty

Devin Levin - (Kevin's father; Osmosian; Killed by the alien criminal Ragnarok)
Magister Labrid - (a fish-like alien and Magister of Planet Earth; Suffered a mortal wound during a battle with the Forever Knights while investigating the Highbreed; His position of Magister of Earth was later given to Max Tennyson)

Plumbers In-Training

Pierce - (Recruited by Max at the end of "War of the Worlds:Part 2")
Helen - (Recruited by Max at the end of "War of the Worlds:Part 2")
Manny - (Recruited by Max at the end of "War of the Worlds:Part 2")
Alan Albright - (Recruited by Max at the end of "War of the Worlds:Part 2")
Cooper Daniels - (Recruited by Max at the end of "War of the Worlds:Part 2")

Former/Inactive Alien Members

Alan Albright's father - (an unnamed Pyronite)
Kevin's biological father - (Devin Levin; Osmosian)
Mike Morningstar's biological father - (name unknown Vladite)

Plumbers' Kids (Alien)

Most Plumbers' Kids are hybrid offspring of various alien members of the Plumbers. They have one human parent and one alien parent.

List of Plumbers' Kids

Ben Tennyson- (3/4 human, 1/4 Anodite, but doesn't seem to have any powers)
Gwen Tennyson- (3/4 human, 1/4 Anodite)
Alan Albright - (Human/Pyronite hybrid)
Mike Morningstar/Darkstar - (Human/Vladite hybrid)
Cooper - (Human/Technomage hybrid)
Kevin Ethan Levin (Human/Osmosian hybrid)
Pierce - (Human/unknown alien hybrid)
Helen - (Kineceleran/human hybrid)
Manny - (Tetramand/human hybrid)
Ken (7/8 human, 1/8 Anodite)
Devlin (part human, part Osmosian, the species of the mother is unknown)

Plumber's Kids (Human)

These Plumber's Kids are either human or their alien heritage comes from an alien who is not a member of the Plumber, who has had a child with a human Plumber.

List of Plumber's Kids

Joel Tennyson - (Both parents where human Plumbers, would later became a Plumber himself & married a Sludge alien named Camille.)
Carl Tennyson - (Human/Anodite hybrid son of Max & Verdona Tennyson, who as no Anodite powers.)
Frank Tennyson - (Human/Anodite hybrid child of Max & Verdona Tennyson, although he has no Anodite powers, he can sense his mother's presence.)
Kenneth "Ken" Tennyson - (Grandson of Max & Verdona Tennyson, and like his father, he has been shown to possess no Anodite powers.)
Ben Tennyson - (Grandson of Max & Verdona Tennyson, and like his father, he possess no Anodite powers. Bearer of the Omnitrix.)
Gwen Tennyson - (Granddaughter of Max & Verdona Tennyson. She possesses Anodite powers, as well as an energy form, unlike her father, brother, uncle, & cousin.)
Elena Validus - (The human daughter of Plumber, Victor Validus.)
Kai Green - (The human daughter of Max's old plumber's friend and the captain of the Navajo Dessert.)
Kevin Levin - (Human/Osmosian hybird and the only son of Devin Levin.)