Likewise , he portrayed himself in the Da Ali G Show ; the Ali G character mistakes him for Vidal Sassoon , a famous hairdresser .
Moreover , Vidal provided his own voice for the animated - cartoon versions of himself in The Simpsons and the Family Guy programs .
Vidal portrayed himself in the Da Ali G Show ; the Ali G character mistakes Vidal for Vidal Sassoon , a famous hairdresser .
Moreover , Vidal provided his own voice for the animated - cartoon versions of himself in The Simpsons and the Family Guy programs .