(Cover) - EN Showbiz - Rupert Grint "found his voice" at school through drama clubs.

The 22-year-old British actor is famous for his portrayal of wizard Ron Weasley in the hugely successful Harry Potter film franchise, whose concluding chapter Harry Potter and the Deathly Hallows: Part 2 hits cinemas this month.

The star suffered from shyness at school but was able to build his confidence through acting in plays and joining drama clubs.

"I've never been that confident. At school I was quite shy. It was through drama club and doing plays that I found my voice. If you've got something like drama you can do everything," he explained in Attitude magazine. "It's a really great thing for building up confidence."

Rupert is amazed by how cruel kids can be to each other at times. The actor advises children to remain "strong" in the face of bullies.

"Hmmm. It's that weird school period when kids can be quite cruel. You've got to stick it out and just be strong. It's hard to know what to do but you have to get through it," he said. (C) Cover Media