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Betty Jean Tennyson is Gordon's wife and Joel's mother.
Appearance[]
She has black hair, blue eyes, and wears glasses. Her normal attire consists of a brownish red jacket over a light blue shirt and a light brown skirt.
During the wedding ceremony, she wore a red dress.
Personality[]
Betty Jean, like Gordon, is stiff and traditional. They were not in favor of their son marrying a Lenopan, but in the end they supported him.
History[]
Ben 10[]

Gordon and Betty Jean accepting Camille as their daughter-in-law
In Big Fat Alien Wedding, her son Joel became engaged to a Lenopan named Camille Mann (a union which would put an end to a decades-long feud between the Lenopans and the Plumbers). Both she and her husband were against the wedding at first (due to Camille being a Lenopan), but later realized they had treated her unfairly and apologized, accepting Camille as their daughter-in-law.
Powers and Abilities[]
Betty Jean has shown herself to be a proficient gunman, as she demonstrated with a Plumber rifle and handgun.
Equipment[]
Betty Jean uses a Plumber rifle in combat.
Betty Jean temporarily wielded a Plumber handgun during the battle against the Mann Family's Bodyguard, given to her by Max.
Appearances[]
Ben 10[]
Season 4[]
- Big Fat Alien Wedding (first appearance)
Etymology[]
Betty Jean was named after her voice actress, B. J. Ward.