Complex sentence: Kacey's acting career began in 1997 when she was just 9, appearing in advertisements and stage plays, her first notable TV role was a guest role in the BBC drama "Hope and Glory" that starred Lenny Henry.
Split into simpler sentences: Kacey's acting career began in 1997 when she was just 9, appearing in advertisements and stage plays. Her first notable TV role was a guest role in the BBC drama "Hope and Glory" starring Lenny Henry.