Vanessa Jo Powers (née Kensington) was a British secret agent and the daughter of Louis and Marie Kensington and Austin's ex-wife. Vanessa Kensington was born to Louis and Marie Kensington at an unknown time. Little is known about her childhood. When Mrs. Kensington retired from British Intelligence, Vanessa followed in her footsteps and became an agent. She is introduced by Basil Exposition as "one of our top agents."

However, at some unknown point, Vanessa would be replaced by a Fembot version of herself who would be tasked with seducing Austin Powers once he was unfrozen and eventually kill him. Basil, as well as the rest of British Intelligence very easily discovered that Vanessa was a Fembot, however for whatever reason decided not to tell Austin this after he was unfrozen, instead acting like the Fembot Vanessa was the real one, with the real Vanessa's whereabouts unknown. In the second Austin Powers film, after having sex with Austin on their honeymoon, Vanessa is quickly revealed as a Fembot when Austin inadvertently controls her with his television remote. She soon after attempts to kill him and self-destructs. Austin grieves for 20 seconds before getting over it, realizing that without a monogamous partner to commit to, he's single again and can return to his old lifestyle. When Austin informs Basil on Vanessa being a Fembot all along after being asked how his honeymoon went, Basil casually and nonchalantly reveals that everyone had known about Vanessa being a fembot the entire time, much to Austin's confusion. For a while, Vanessa had a stoic, serious personality, always focused on the job. Austin referred to this as her having "a bug up her arse." However, spending time with Austin caused her to loosen up and have more fun.

With the revelation that she's a Fembot, it's implied that she was programmed with a sly and manipulative mind and knew how to gradually and effectively draw in her prey with a complicated, yet subtle, form of seduction.