Complex sentence: In 2008, Perlman joined the cast of the TV show "Sons of Anarchy" on FX playing Clay Morrow, the president of the motorcycle club and the protagonist's stepfather.
Split into simpler sentences: In 2008, Perlman joined the cast of the TV show "Sons of Anarchy" on FX. He played Clay Morrow, the president of the motorcycle club and the protagonist's stepfather.