Thanks Lesley.
It's not John Gielgud, Jonathan Goldsmith, Albert Finney, Tom Wilkinson, Alan Alda or Jim Broadbent.
Multiple guesses? If I said no, then you could post ten times with one guess in each post. Three guesses per day, would that be fairer?
Anyway, you're probably getting fed up with this one, so I'll do one more reveal later today (Wednesday 5th) if no one gets it before then.