Complex sentence: While Scodelario's role had minimal speaking lines in the first series, her character developed considerably in the series during 2008, before she eventually became the central character in the 2009 and 2010 series after the cast had been replaced with a new generation of characters.
Split into simpler sentences: While Scodelario's role in the first series had minimal speaking lines, her character developed considerably in the series during 2008. She eventually became the central character in the 2009 and 2010 series after the cast had been replaced with a new generation of characters.