Check out this nice affable ticket seller in the 1989 movie �Let It Ride�. Doesn�t he seem kind of familiar? I can almost guarantee you�ve seen a very popular movie he was in later on, and I can definitely guarantee you�ve seen pictures and posters of him in the role he plays in the aforementioned famous movie.
Answer below the fold.
Want a clue first?
And our celebrity guest is...

Robbie Coltrane, here playing Rubeus Hagrid in the first Harry Potter movie