<Li> Nickname by Carlton, Ashley, Nicky & Hilary: "Aunt Vy" </Li> <Li> Nickname by Geoffrey: "Mrs. Smith" </Li> <P> Viola "Vy" Smith - Wilkes, portrayed by Vernee Watson - Johnson, is Vivian's oldest sister and Will's loving mother . She is a stern, no - nonsense disciplinarian who is not afraid to challenge anyone who gets in her way . It was her idea that Will should go to Bel Air to get a good education and avoid a life of violence in their West Philadelphia neighborhood . Vy works as a supervisor at the post office . It was due to this she opposed the decision when Janice decides to marry Frank, a white man . Though by their next encounter she is more acceptable . Vy eventually decides to marry Lisa Wilkes' father after Will and Lisa call off their second wedding attempt . However, it is unknown whether or not they married, since in Vy's next appearance, Mr. Wilkes is not seen or mentioned . Her maiden name and married name were previously the same, as Will's father was named Lou Smith . </P> <Ul> <Li> Nicknames by Will: "Granny" or "DJ Granny" </Li> </Ul>

Who plays will's mum in fresh prince of bel air