Rooters

The Rooters are the Black Ops wing of the Null Void Plumbers and a splinter faction of the organization as a whole. They appeared as villains in Omniverse. According to Derrick J. Wyatt, they are also secret. Over time, they went rogue and split from the Plumbers creating a rift.

Background
The Rooters are a special Plumber unit of the Null Void. According to Max Tennyson, they have a really powerful rank on the Plumbers. They answer only for the High Protectorate and only the Magistrate outranks the leader, Proctor Servantis.

According to Kevin Levin, they rescued him in the Null Void from a Vulpimancer and took him to their lair. He met Servantis, who used his absorption powers to pass DNA and create an army for a war. Servantis used Kevin to fuse himself with a Cerebrocrustacean. The Amalgam Kids were used to do "nasty things", according to Kevin, who fled later. Servantis later wiped the kids' memories, including Kevin's.

Omniverse
In The Rooters of All Evil, the Rooters returned at the Plumber HQ, hunting for Kevin. Servantis attacks the Plumbers, trying to read their minds. Along with him are three more members; Swift, Phil, and Leander. Swift and Leander are defeated by Ben, who finds Kevin. Ben, Kevin, and Zed escape but they later got taken to the HQ by the Rooters. Servantis reveals that each Osmosian has a unique power, and Kevin's power is absorption. They will use Kevin to create an army to win a war against an unknown threat to the universe.

After Max doesn't let Kevin go with the Rooters, they attack the Plumbers. Ben turns into Gravattack and with the help of Molly, Patelliday, and Rook, defeated the villains. Servantis reads Ben's, Rook's, and Max's minds and detects that they don't know anything about where Kevin went, because Rook destroyed the camera systems while he was fighting Swift. They leave the HQ, but Servantis says that they will return.

Notable Members

 * Proctor Servantis (leader)
 * Phil
 * Swift
 * Leander
 * Ragnarok (deceased)

Ben 10: Omniverse

 * The Rooters of All Evil (first appearance)
 * Weapon XI: Part 1
 * Weapon XI: Part 2

Trivia

 * According to Derrick J. Wyatt, the original idea for the Rooters was Rook's Proto armor.
 * The leader, Servantis, projected the Proto-Tech Armor of Rook.