hi. i think the answer is paul mccartney. ummm. comic relief 1988 ( lenny henry ), the simpsons ( bart, "lisa the vegetarian" 1995 ) and "there's only one paul mccartney ( neil kinnock 2002 ). hope this helps. jim.
I think the answer the quiz-setter was looking for is Tracey Ullman, though jimmer's reply just goes to show that there is often more than one valid answer to a question like this.