Vev was a shapeshifting alien who settled on Mars. She took the form of a black-furred mouse with long black hair. But she never could shape the eye correctly. The best she could do is to get a black pupil on a solid blue sclera. She married Cutlass and they had one child, Hot Rod, who inherited all of her mother's features (including the alien eyes) but without the ability to change them. She and her husband raised their nephew Throttle after his parents died.
She was a loving woman with the major flaw of trying to run everyone else's life for them. When Throttle told them Roddie wanted to join the Freedom Fighters with him, Modo, and Vinnie, she demanded that Cutlass use his government contacts to get Roddie onboard the Olympian Fury. Cutlass managed to get two spots, but Throttle refused to go not willing to leave his bros or the commitment he made to the Freedom Fighters. Roddie sneaked Stella onboard instead.
Vev died when their house was destroyed during a Plutarkian raid and before the Freedom Fighters could get to that section of the city. She never heard the news that the Fury was destroyed by the Plutarkians (read Wars Are Won By Those Who Dare: Reunions).
In Wars Are Won By Those Who Dare: Turbo, there are flashbacks to Throttle and Roddie's childhood. Cutlass worked for the government and was very protective of his daughter and nephew, but often missed the little details. He and Vev thought Vinnie was a bad influence because his mother was the town slut, and were oblivious to how Vinnie followed Throttle and Modo's lead in nearly everything.