|Powers and Abilities|
|Equipment||Plumber tool belt|
|Voice Actor||Dee Bradley Baker|
|First Appearance||While You Were Away|
Ben 10: Omniverse
Wat-Senn's name is a pun on the name "Watson" and Rip van Winkle.
- Wat-Senn asked to be stationed on Revonnah purely because nothing eventful ever occurs on the planet.
- Wat-Senn is an old rival and friend of Max Tennyson.