The police pursuing the inquiry are playing a complex role.

In fact, it was a subtle and somewhat complex role, unlike anything Quaid had ever played.

But for the last 20 years, she has taken on the most difficult and complex roles with an extraordinary commitment.

A. I think being chief executive is a very difficult and complex role right now.

I have a voracious appetite for interesting and complex roles.

Nevertheless, this first attempt at a complex role was sound and, with experience, she may achieve a rounded characterization.

Jewelry played a complex role in Greek life that went far beyond personal adornment.

Malnutrition: Nutrition has an important and complex role in maintenance of good bone.

Anti-vaccinationists have played a little-known but complex and generally strongly democratic role in our nation's past.

In many respects, this is the most complex role of my career.