Just reading that book recently and it started me off to thinking about how so many actors seem to be brown-eyed especially in American and American TV shows/series. It seems to be going the same way in the UK. In the 1950s and even 60s most seemed to be blue-eyed. Anyway,thinkin it might be my immagination I looked it up and got this. Blue eyes are most common in Northern Europe and Central Europe and to a lesser degree in Southern Europe (Spain and Portugal are best examples, where 1-49% of the people are blue-eyed, through migration of Northern European and Central European settlers) and southern Central Asia; Afghanistan and Pakistan are a notable example.[30] They are also found in parts of North Africa,[31] West Asia, and South Asia,[32] in particular the northern areas of India, largely Kashmir. Pakistan and Iran also have a considerable population of blue eyed people.
A 2002 study found that the prevalence of blue eye color among Caucasians in the United States to be 33.8 percent for those born from 1936 through 1951 compared with 57.4 percent for those born from 1899 through 1905.[10] Blue eyes have become increasingly rare among American children, with only one out of every six or 16.6%, which is 49.8 million out of 300 million (22.4% of white Americans) of the total United States population having blue eyes.[33][34] The plunge in the past few decades has taken place at a remarkable rate. A century ago, 80 percent of people married within their ethnic group. Blue eyes were routinely passed down, especially among people of Western and Northern European ancestry.[33][34][35]