Betty Jean Tennyson is a Plumber who married Gordon Tennyson. She is the mother of Joel Tennyson, who later became a Plumber himself.
, her son Big Fat Alien Wedding Joel became engaged to a Lenopan, named Camille Mann (a union which would put an end to a decades long feud between the Sludges and the Plumbers). Both she and her husband were against the wedding at first (due to Camille being a Sludgepuppy), but later realized they had treated her unfairly and apologized, accepting Camille as their daughter-in-law.
She has black hair, blue eyes, and wears glasses.
She was named after her voice actress,
B. J. Ward.
Betty Jean is one of few known female members of the Tennyson family who is a member of the Plumbers.
Ben 10 Characters
Ben Tennyson | Gwen Tennyson | Kevin Levin | Max Tennyson | Rook Blonko
Julie Yamamoto | Plumbers | Jimmy Jones | The Galvan ( Azmuth, Retaliator, Galvan Teacher) | Professor Paradox | Ship | Eunice | Zed
Petrosapiens ( Tetrax Shard, Sugilite) | Gluto | Galactic Enforcers | The Highbreed ( Reinrassic III) | Myaxx | Xylene | Colonel Rozum | SECT ( Lieutenant Steel) | Ignaceous | Technorg | Hector | Elsgood | Sheriff Mason | Kai Green | Ishiyama | Tennyson Family | Levin Family | Rook Family | Ester | Gourmands | Lewodans ( Tiffin, Cicely, Caitiff) | Rad Dudesman | Gar Red Wind
Albedo | Elena Validus | Phil | The Forever Knights ( Squire, Connor, Sir Cyrus, Patrick, Driscoll) | Vilgax | Michael Morningstar | Sunny | Antonio | Cash Murray | J.T. | Oliver Thompson | Zaw-Veenull | Probity | Viktoria
Deceased Supporting Characters and Allies
Devin Levin | Magister Labrid | Magister Prior Gilhil | Pierce Wheels | Sir George | Winston | Victor Validus | Kwarrel | The Sentinel
Prisoners of Aggregor
Charmcaster | Charmcaster's Stone Creatures | Argit | Baz-El | Simian | Vreedle Brothers ( Octagon Vreedle, Rhomboid Vreedle) | Blarney T. Hokestar | Raff | Pakmar | Mazuma | Solid Plugg
Bivalvan | Galapagus | P'andor | Andreas | Ra'ad
Serena | Bellicus | Mr. Baumann
Generator Rex Heroes
The Secret Saturdays Heroes
Rex Salazar | Bobo Haha | Agent Six | Rebecca Holiday | White Knight | Caesar Salazar
Zak Saturday | Doc Saturday | Drew Saturday | Fiskerton Saturday | Komodo | Zon
Future & Alternate Heroes
Ben 10,000 (Ultimate Alien) | Ben's Team (Alternate Future) ( Ben 10,000 (Ben 10), Gwendolyn Tennyson (Alternate Futuree), Ken 10, Devlin Levin, Max Tennyson (Alternate Future), Kenny's Stone Pet) | Ben's Team (Dimension 23) ( Ben 23 | Tetrax Shard (Dimension 23) | Sevenseven (Dimension 23) | Azmuth (Dimension 23)) | Ben Tennyson (RAT Timeline) | Gwen Tennyson (RAT Timeline) | Max Tennyson (RAT Timeline) | Plumbers (RAT Timeline) | Ben Tennyson (Gwen 10) | Gwen 10 | Max 10