Simplify the following text for a Grade 7 native English-speaking person.
Original: She worked there for fifty years , and became one of the most popular actors there , but she never became a star because of the parts she played ; she always played old women in comedies , never heroines and therefore seldom main parts .
Simplified: She worked there for fifty years , and became one of the most popular actors there . But she never became a star because of the parts she played ; she always played old women in comedys , never heroines and main parts .