Lord Tyrion Lannister is the youngest child of Lord Tywin Lannister and younger brother of Cersei and Jaime Lannister. He is a dwarf and uses his wit and intellect to overcome the prejudice he faces.
Peter Dinklage is playing the role of Tyrion Lannister in Game of Thrones and most probably the favorite actor of most people in this TV series. See how Peter Dinklage Then And Now has changed during this series.