Katie Cassidy started acting in the Lifetime TV drama series The Division in 2003. After this she landed roles in 7th Heaven, Harper's Island and Gossip Girl.
Her first professional acting role was in The Ice Storm in 1997.
Aaliyah first started acting at the age of 18
He did the first Harry Potter movie when he was 11
1978 when he starred in The Wiz.
Her first acting role was in 1969 when she played Showgirl #1 on an episode of "Mayberry R.F.D."
Robert Pattinson first started his acting career when he was 12 years old
His first movie was 'Love is on the Air' in 1937. He started acting in plays while he in college in 1930.
You can start acting at any age :)
Katie started modelling in 2003.
Katie started school in 1983.
Hilary Duff started off acting. She eventually slowly progressed into her singing career.
Katie started riding when she was just 7 years old.