1.   Although described as core troops, you might consider including smaller units of Boar Boyz in a supporting role.

2.   At a crucial moment, the United States played an important supporting role.

3.   Hopper won a supporting role in that film too.

4.   However, music played an important supporting role.

5.   It was good to have him in Rome in a major supporting role.

6.   Its most unarguable successes are in the main supporting roles.

7.   The three supporting roles are all superbly played.

8.   These now form part of the existing Royal Train, together with two other converted vehicles used in a supporting role.

9.   We need to carry on in our supporting role, offering a reliable, efficient and friendly service.