|This article belongs to the Reboot Timeline|
Wilhelmina is an elderly lady, so she has gray hair. Wear a luxurious blue dress with blue shoes. She is wearing glasses.
Wilhelmina is surprised by nothing, not ghosts or aliens.
Wilhelmina is a distant relative of the Tennysons, being the cousin of Max Tennyson, living in the United Kingdom.
She first appears in King of the Castle, when the Tennysons visit Bishopbrook Castle. Wilhelmina greets them and tells Ben that the castle is haunted.
In the episode Heads of the Family, Wilhelmina attends the annual meeting of the Tennysons.