A Villengard ambulance was a military first aid unit fitted with artificial intelligence produced by Villengard weapon factories. It was programmed to heal subjects and mend them to full health. However, it followed an algorithm wherein if the restoring the subject to full health was deemed to not be convenient, then it would smelt them instead and convert their remains into an AI interface to be returned to their next of kin or designated favourite person. This happened to John Francis Vater, whose eyesight recovery from blindness taking four weeks was deemed inconvenient.
The ambulance's AI was represented on its screen as a white elderly woman. It would communicate with the subject and inform them of its actions. However, it would also grow hostile if it sensed its network was under threat from a virus and work to eradicate it from its system.
The Fifteenth Doctor and Ruby Sunday encountered several Villengard ambulance units deployed on Kastarion 3 in the year 5087. The ambulances used by the Church were programmed to only assist people who had been ordained and made Anglican Marines. With Ruby mortally wounded, the Doctor surmised the only way to make the ambulances heal all subjects rather than kill them was to convince the units that the marines had surrendered. However, John Vater's AI found a way to override the ambulance's programming through his residual love for his daughter Splice. With the ambulances reprogrammed, Ruby was healed and the conflict on Kastarion 3 ended. (TV: Boom [+]Steven Moffat, Doctor Who series 14 (BBC One and Disney+, 2024).)
Whilst talking to the Fifteenth Doctor on Finetime, Lindy Pepper-Bean played a video recording of her mother, Penny Pepper-Bean, who the Doctor remarked looked identical to the Villengard Ambulance on Kastarion 3. Ruby recognised Penny as someone else entirely however. (TV: Dot and Bubble [+]Russell T Davies, Doctor Who series 14 (BBC One and Disney+, 2024).)
The Fifteenth Doctor later recognised the Villengard Ambulance's interface as resembling many other women he and Ruby encountered across their travels. He also correctly guessed that Susan Triad, the 2024 counterpart of the AI, dreamed of her life as the ambulance. (TV: The Legend of Ruby Sunday [+]Russell T Davies, Doctor Who series 14 (BBC One and Disney+, 2024).) In 2024, Sutekh revealed the interface was just one of countless entities he had created throughout time and space to unleash his dust of death onto all of creation when he revealed himself through Susan Triad. (TV: Empire of Death [+]Russell T Davies, Doctor Who series 14 (BBC One and Disney+, 2024).)
