Unstrung exposes the dramas of the juniors tennis world, hitting the road with a handful of teenage competitors as they head for the national championship.
| Actor | Role |
|---|---|
 Andre AgassiSelf | Self |
| NNick BollettieriSelf | Self |
 Jim CourierSelf | Self |
 John McEnroeSelf | Self |
| SSam QuerreySelf | Self |
 Andy RoddickSelf | Self |